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Prompts··9 min read

AI Prompts: From Beginner to Expert in Image Generation

Master prompt engineering to create images with AI: the techniques, formulas and examples professionals use to get perfect results.

EP

Equipo Pictulab

Author

AI Prompts: From Beginner to Expert in Image Generation

If you've used AI image generation tools like Midjourney, DALL-E, or Stable Diffusion, you've probably experienced the frustration of getting results that look nothing like what you imagined. The difference between an amateur prompt and a professional one can be the line between a mediocre image and a masterpiece.

Prompt engineering isn't magic; it's a learnable skill that will completely transform your results. In this guide, I'll take you from the basics to the advanced techniques the professionals use.


🎯 Level 1: Prompt Engineering Fundamentals

What Is a Prompt?

A prompt is the text instruction you give the AI to generate an image. Think of it like a recipe: the more specific and structured you are, the better the results.

The Golden Rule: Be Specific

Basic prompt (bad):

Prompt
a dog

Result: A generic, possibly mediocre image.

Improved prompt (good):

Prompt
an adult golden retriever sitting in a sunny garden,
looking at the camera, professional photography, natural light,
high quality

Result: An image much closer to what you wanted.

Basic Prompt Structure

Prompt
[SUBJECT] + [DETAILS] + [STYLE] + [QUALITY]

Practical examples:

  1. For product photography:
Prompt
bottle of red wine on a rustic wooden table,
studio lighting, neutral blurred background,
commercial photography, high resolution
  1. For digital illustration:
Prompt
astronaut cat floating in space,
stars and nebulas in the background, colorful cartoon style,
digital art, sharp details
  1. For corporate content:
Prompt
diverse business team in a modern office,
collaborating around a table with laptops,
natural light from windows, professional, 4k

🎨 Level 2: Mastering Visual Styles

The Most Useful Style Categories

1. Photographic Styles

Portrait photography:

Prompt
portrait of a 30-year-old woman, professional style,
soft bokeh, 85mm lens, golden hour lighting,
editorial fashion photography

Product photography:

Prompt
smartphone floating over a reflective surface,
studio lighting, clean background, commercial photography,
high-end product shot, octane render

Landscape photography:

Prompt
snowy mountains at dawn, lake in the foreground,
wide angle, dramatic clouds, HDR photography,
national geographic style

2. Artistic Styles

Digital art / Illustration:

Prompt
cyberpunk city with neon skyscrapers,
digital painting, concept art, trending on artstation,
highly detailed, vibrant colors

Watercolor:

Prompt
wildflowers in a field, watercolor painting,
soft colors, delicate brushstrokes, white background,
botanical illustration style

Oil painting:

Prompt
portrait of a wise old man, oil painting,
rembrandt lighting, classical art, rich textures,
museum quality

3. Modern and Design Styles

Minimalist:

Prompt
abstract geometric logo, minimalist design,
flat colors, simple shapes, negative space,
modern corporate branding

3D render:

Prompt
interior of a modern living room, 3d render,
blender, octane render, photorealistic,
architectural visualization, ray tracing

Isometric:

Prompt
tech startup office in isometric view,
isometric illustration, flat design, pastel colors,
low poly style, clean edges

⚙️ Level 3: Technical Parameters That Make the Difference

Lighting

Lighting can completely transform an image:

Golden hour / Magic hour:

Prompt
couple on the beach, golden hour lighting,
warm tones, long shadows, romantic atmosphere

Studio lighting:

Prompt
corporate portrait, three-point lighting,
professional headshot, clean background, sharp focus

Dramatic lighting:

Prompt
actor on a theater stage, dramatic spotlight,
chiaroscuro, high contrast, moody atmosphere

Natural light:

Prompt
breakfast on a kitchen table, soft natural window light,
morning light, bright and airy, lifestyle photography

Composition

Rule of thirds:

Prompt
surfer on a giant wave, rule of thirds composition,
dynamic angle, action shot, dramatic sky

Centered composition:

Prompt
geometric mandala, perfectly centered,
symmetrical composition, balanced, decorative art

Low angle / High angle:

Prompt
skyscraper seen from below, low angle shot,
dramatic perspective, converging lines, urban photography

Quality and Resolution

Add these terms to improve technical quality:

  • 8k resolution / 4k uhd
  • highly detailed / intricate details
  • sharp focus / crisp
  • professional photography
  • award-winning
  • masterpiece
  • photorealistic (for realistic images)
  • trending on artstation (for digital art)

🔥 Level 4: Advanced Professional Techniques

1. The Word-Weighting Formula

Some models let you give more or less importance to certain words:

Common syntax:

  • (word) = 1.1x weight
  • ((word)) = 1.21x weight
  • (word:1.5) = 1.5x weight
  • [word] = 0.9x weight (less importance)

Example:

Prompt
(((professional portrait))) of a tech CEO, modern office,
[slightly blurred background], studio lighting,
(confidence:1.3), (sharp focus:1.4)

2. Negative Prompts: What You DON'T Want

Specify which elements you want to avoid:

Example:

Prompt
Prompt: beautiful fashion model on a runway
Negative prompt: deformed hands, extra fingers, blurry,
low quality, watermark, text, ugly, distorted face

Negative prompts are crucial for:

  • Eliminating common defects (malformed hands)
  • Avoiding unwanted elements (watermarks, text)
  • Improving overall quality

3. Prompt Chaining: Building in Layers

For complex images, break the prompt into sections:

Prompt
[MAIN SUBJECT]:
young Latina entrepreneur, 28 years old, confident smile,
black blazer, MacBook laptop

[ENVIRONMENT]:
modern startup office, plants, large windows,
abundant natural light

[ATMOSPHERE]:
professional yet casual, inspiring, positive energy

[TECHNICAL]:
editorial photography, 50mm f/1.8, soft bokeh,
natural lighting, high quality, 4k

4. Specific Artist and Style References

Mention specific artists or visual references:

For photography:

  • Annie Leibovitz style (iconic portraits)
  • Steve McCurry style (vibrant photojournalism)
  • Gregory Crewdson style (cinematic, surreal)

For illustration:

  • Hayao Miyazaki style (Studio Ghibli)
  • Artgerm style (glamorous digital art)
  • Moebius style (Franco-Belgian sci-fi)

For design:

  • Bauhaus style (geometric, functional)
  • Art Deco (elegant, 1920s)
  • Memphis design (pop colors, 1980s)

Complete example:

Prompt
female portrait in an enchanted forest, Annie Leibovitz style,
editorial photography, medium format camera, natural light,
ethereal mood, Vogue magazine quality

5. Aspect Ratio and Format Control

Specify dimensions according to your needs:

  • 16:9 → YouTube thumbnails, presentations
  • 9:16 → Instagram Stories, TikTok
  • 1:1 → Instagram posts, profiles
  • 4:5 → Instagram feed (optimal)
  • 3:2 → standard photography

In Pictulab, you select the aspect ratio directly, but some models let you specify it in the prompt.


💡 Level 5: Strategies for Specific Niches

E-commerce and Product Photography

Winning formula:

Prompt
[specific product] on [surface],
studio lighting, white/gray background,
commercial product photography, high detail,
sharp focus, 4k, e-commerce ready

Real example:

Prompt
white sneakers on a reflective surface,
studio lighting, gradient gray background,
commercial photography, high-end product shot,
sharp details, 8k resolution

Content Marketing and Blogs

Winning formula:

Prompt
conceptual illustration of [concept],
modern flat design, [color palette],
suitable for blog header, clean composition,
professional digital art

Real example:

Prompt
conceptual illustration of team collaboration,
modern flat design, blue and orange color scheme,
people working with laptops and charts,
suitable for tech blog header, clean composition

Social Media: Instagram, Facebook, LinkedIn

For Instagram (lifestyle):

Prompt
aesthetic coffee shop scene, latte art,
pastries, morning light through window,
instagram-worthy, trendy, warm tones,
lifestyle photography, highly shareable

For LinkedIn (professional):

Prompt
diverse business team in modern office,
collaborating around glass whiteboard,
professional corporate photography,
natural lighting, authentic, aspirational,
suitable for LinkedIn banner

For Facebook Ads (eye-catching):

Prompt
before and after transformation concept,
split screen composition, dramatic contrast,
eye-catching colors, advertising photography,
clear focal point, high engagement potential

🧪 Practical Exercises

Exercise 1: From Basic to Advanced

Take this basic prompt and improve it step by step:

Level 0: a house

Level 1: modern house in the forest

Level 2: modern architectural house in a pine forest, large windows, architecture photography

Level 3: minimalist modern two-story house in a pine forest, large floor-to-ceiling windows, wood and glass structure, professional architectural photography, golden hour lighting, 4k

Level 4: (((minimalist modern house))) two stories integrated into a Norwegian pine forest, (floor-to-ceiling windows:1.3), light wood and glass structure, architectural photography in the style of Dezeen magazine, golden hour, soft mist, (sharp architectural details:1.2), 8k, award-winning architecture photography

Exercise 2: Build Your Prompt Library

Save successful prompts organized by category:

📁 Portraits 📁 Products 📁 Landscapes 📁 Abstracts 📁 Architecture

For each one, note:

  • The complete prompt
  • Negative prompts used
  • Technical parameters (steps, CFG, seed)
  • A screenshot of the result

🚫 Common Mistakes to Avoid

1. Prompts That Are Too Long and Confusing

Bad:

Prompt
I want an image of a cat that is sitting in a garden
with red and yellow flowers and there's a tree behind it and the sky
is blue and there are white clouds and the cat is orange...

Good:

Prompt
orange cat sitting in a garden with red and yellow flowers,
tree in the background, blue sky with clouds, natural photography,
high quality

2. Not Specifying the Style

Bad: mountains with a lake

Good: mountains with a lake, landscape photography, dramatic clouds, HDR

3. Ignoring Negative Prompts

Always use negative prompts to avoid:

  • blurry, low quality, distorted, deformed
  • watermark, text, signature, logo
  • extra limbs, extra fingers, bad anatomy (for people)

4. Not Iterating and Refining

The first prompt is rarely perfect. Professionals:

  1. Generate 10-20 variations
  2. Identify what works
  3. Refine the prompt
  4. Repeat the process

🎓 Resources and Tools

Prompt Galleries for Inspiration

  1. Lexica.art → Thousands of Stable Diffusion prompts with images
  2. PromptHero → Multi-model database with prompts
  3. Pictulab Gallery → Curated examples with prompts included

Prompt Generators

  1. PromptMania → Visual prompt builder
  2. ChatGPT → "Act as an AI prompt expert and help me create..."

Communities to Learn

  • r/StableDiffusion (Reddit)
  • Midjourney Discord (official)
  • Pictulab Community (private Discord for users)

🚀 Practice with Pictulab

The best way to master prompt engineering is by practicing. Pictulab lets you:

Experiment with multiple models (Flux, Stable Diffusion, DALL-E) ✅ Save your favorite prompts in a personal library ✅ See the complete history of each generation with its parameters ✅ Refine with img2img and inpainting without switching tools ✅ Share and learn from the community

Start for free and take your prompts to the next level:

Sign up for Pictulab →


📚 Final Cheatsheet: The Complete Formula

Prompt
[detailed MAIN SUBJECT] +
[ACTION OR POSE] +
[specific ENVIRONMENT/CONTEXT] +
[ARTISTIC or photographic STYLE] +
[LIGHTING] +
[COMPOSITION] +
[QUALITY AND TECHNICAL PARAMETERS] +
[optional artist REFERENCES]

NEGATIVE: [common defects, unwanted elements]

Example applying the complete formula:

Prompt
young female entrepreneur presenting to investors,
confident stance, modern startup office with glass walls,
editorial business photography, natural window lighting,
rule of thirds composition, sharp focus, 4k resolution,
Annie Leibovitz style professional portrait

Negative: blurry, low quality, distorted hands,
unprofessional, cluttered background

Now you have all the tools to create professional-level prompts! Constant practice is what will make you a true expert.

What will your first advanced prompt be?

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