How to Write Better AI Prompts for Images

What Makes a Good Image Prompt?

A good AI image prompt has six parts: subject, style, composition, lighting, mood, and constraints. The more specific you are, the better the result. Instead of "a dog," say "a golden retriever sitting on a beach at sunset with warm side lighting and a calm, peaceful mood." The difference is huge.

Who This Is For

This tutorial is for anyone creating images with AI. Content creators use these tools to make blog graphics. Marketers build social media posts and ads. Designers prototype ideas fast. Social media managers save time on visual content. Even if you've never used an AI image tool before, this guide will help you get exactly what you want.

Best Tools and Best Approach

Different tools work best for different jobs.

ChatGPT with DALL-E. ChatGPT is great for natural language. You can write full sentences describing what you want, and it handles things like text in images well. Two to four detailed sentences usually work best. It's conversational, so you can ask follow-up questions and refine as you go.

Midjourney v7. Midjourney creates the strongest aesthetics and style. It loves short, high-signal phrases rather than long sentences. The 40 to 60 word range is the sweet spot. You add parameters like --ar for aspect ratio, --s for style strength, and --c for chaos. It's powerful but has a learning curve.

Flux 2. Flux excels at prompt adherence and photorealism. It listens to exactly what you say and creates accurate, detailed results. Perfect when you need the AI to follow your instructions closely.

Stable Diffusion. Stable Diffusion gives you the most control. You can use negative prompts to exclude things you don't want. It runs locally or free online, so there's no subscription. Great for experimentation.

Ideogram. Ideogram is the best choice when you need text in your image. Logos, posters, and graphics with words all work well here.

The Six-Part Prompt Formula

Use these six parts to build any prompt. Not every prompt needs all six, but including them makes a huge difference.

Part 1: Subject. What is in the image? Be specific. Not "a person" but "a woman in her 30s wearing a blue sweater, holding a coffee cup." Not "food" but "a slice of chocolate cake with strawberries on top."

Part 2: Style. What is the medium or artistic style? Photography, illustration, watercolor, 3D render, oil painting, digital art, comic book style, retro, minimalist. This changes the entire feel.

Part 3: Composition. How is the image framed? Close-up detail shot, wide landscape, overhead bird's eye view, portrait orientation, rule of thirds, centered, off-center. Composition directs the viewer's eye.

Part 4: Lighting. How is the subject lit? Soft natural window light, dramatic side lighting, golden hour sunset, studio lighting, backlighting, neon glow, candlelight. Lighting creates mood and dimension.

Part 5: Mood and Atmosphere. What is the emotional tone? Calm and peaceful, energetic and dynamic, mysterious and moody, professional and clean, warm and cozy, cold and minimal. This guides the overall feeling.

Part 6: Constraints. What should be excluded? No text, no watermark, no extra fingers, no blur, high detail, sharp focus, professional quality. Constraints prevent common mistakes.

Step-by-Step Walkthrough

Let's build a prompt together using the six-part formula.

Step 1: Start with a clear subject.

Write one sentence describing what is in the image. Be specific about objects, people, animals, or scenes.

Example: "A woman in her 40s with long auburn hair sitting at a desk."

Step 2: Add the style and medium.

Choose an artistic style. This transforms the look completely.

Example: "A woman in her 40s with long auburn hair sitting at a desk, illustrated in a watercolor style."

Step 3: Describe the composition and framing.

Decide how the camera or artist sees the scene. Close in or far back? What angle?

Example: "A woman in her 40s with long auburn hair sitting at a desk, illustrated in a watercolor style, shot from a three-quarter view with the desk and laptop visible."

Step 4: Add lighting and mood.

Choose how light falls on the subject. Choose the emotional tone.

Example: "A woman in her 40s with long auburn hair sitting at a desk, illustrated in a watercolor style, shot from a three-quarter view with the desk and laptop visible. Warm natural light from a window on the left. Calm, focused, and peaceful mood."

Step 5: Include negative constraints.

Say what you do not want. This prevents errors.

Example: "A woman in her 40s with long auburn hair sitting at a desk, illustrated in a watercolor style, shot from a three-quarter view with the desk and laptop visible. Warm natural light from a window on the left. Calm, focused, and peaceful mood. No text, no watermark, no extra hands or arms."

Step 6: Generate, review, and refine.

Run the prompt. Look at the results. Did you get what you wanted? If not, adjust one or two parts and try again. Small tweaks often fix problems.

Three Before-and-After Examples

Example 1: Product Photo

Weak prompt: "A product photo of a coffee mug."

Strong prompt: "A ceramic coffee mug with a minimalist white design, sitting on a wooden table. Shot from above at a 45-degree angle. Soft natural morning light from the right. Clean, bright, professional photography style. Sharp focus, high detail, no shadows, no blur, no text or logo."

Result: The weak version is generic and blurry. The strong version shows a crisp, well-lit, professional product shot.

Example 2: Social Media Graphic

Weak prompt: "A motivational image about success."

Strong prompt: "An illustration of a woman climbing a mountain. At the peak, she raises her arms in victory. Mountains in the background, blue sky with clouds. Bright, energetic, hopeful mood. Vibrant colors: gold, blue, white. Illustrated in a modern geometric style. No text, centered composition, 16:9 aspect ratio."

Result: The weak version has no direction. The strong version is a ready-to-use social graphic with the right mood and aspect ratio.

Example 3: Background Image

Weak prompt: "A nature scene."

Strong prompt: "A lush green forest stream. Water flows over smooth rocks in the foreground. Tall trees and ferns surround the water. Soft dappled sunlight filtering through the leaves. Peaceful, calm, serene mood. Photorealistic, high detail, 4K quality. Horizontal composition, rule of thirds. No people, no animals, no text."

Result: The weak version could be anything. The strong version is a specific, peaceful, nature photograph ready for use as a background or header image.

Platform-Specific Tips

Midjourney. Use parameters to control the output. Add --ar 16:9 for widescreen, --s 750 for high style, --c 30 for more variation. Keep your main prompt between 40 and 60 words. Use commas to separate concepts. Avoid "best," "amazing," and other superlatives. Midjourney responds better to descriptive, specific language.

ChatGPT with DALL-E. Write in natural sentences. You can use two to four sentences. ChatGPT understands casual language. Ask follow-up questions like "Make it more colorful" or "Try a different angle." It remembers context, so you can iterate fast.

Stable Diffusion. Use negative prompts. If you don't want blurry images, add "blurry, low quality, distorted" to the negative section. This works really well. You can run it locally, so experiment freely without cost.

Ideogram. This is for text-heavy designs. Use it for logos, posters, book covers, and social graphics with words. Ideogram renders text accurately. Specify the exact words you want and the font style.

Common Mistakes and Limitations

Being too vague. "A girl" generates a different result every time. "A girl with dark curly hair, brown eyes, wearing a red jacket, standing in a sunny garden" is consistent and clear.

Overloading with details. More is not always better. Too many ideas in one prompt confuse the AI. Stick to five to seven key details. Remove words that don't add meaning.

Expecting perfect results on the first try. AI image generation is iterative. You generate, you review, you adjust. This is normal. It's part of the creative process.

Not iterating. If the first result is close but not perfect, tweak one or two things and regenerate. Small changes often fix the problem. Don't give up after one attempt.

Ignoring aspect ratios. A square image looks different from a widescreen one. Specify --ar 16:9 for widescreen or --ar 1:1 for square. The right ratio matters for where you'll use the image.

Expecting the AI to guess your vision. The more specific you are, the closer the AI gets to what you want. Vague prompts produce generic results. Detailed prompts produce impressive results.

Next Steps

Explore AI design tools on MintedBrain. Browse our creative content tutorials for more hands-on guides.

Start with one tool. Write a few prompts using the six-part formula. See what works. Experiment. The more you practice, the faster and better you become at prompt writing. Have fun creating.