Free Art Prompt Generator

How to write AI art prompts that actually work (Midjourney, DALL·E, Stable Diffusion)

Most “bad” generations are not because the model is weak. It is usually the prompt. Too vague, too many competing ideas, or missing the few details the model needs to lock onto.

A solid AI image prompt is basically art direction in text form. You are telling the model what to draw, how to frame it, what the light feels like, and what to avoid.

A simple prompt formula you can reuse

If you want a repeatable structure, this one is easy to remember:

Subject + setting → style/medium → lighting → composition/camera → key details → quality cues → (optional) negative prompt

Example skeleton:

• Subject: who or what is the focal point?
• Setting: where is it happening, what time, what weather?
• Style: anime, watercolor, cinematic, photoreal, 3D render, etc
• Lighting: soft, dramatic, neon, golden hour, low key
• Composition: close up, wide shot, top down, macro, isometric
• Details: colors, materials, props, clothing, era, mood
• Quality cues: sharp focus, high detail, clean background (do not overdo these)
• Negative prompt: what you do not want to see (mostly for Stable Diffusion)

What changes between Midjourney vs DALL·E vs Stable Diffusion?

They all accept text prompts, but they respond to slightly different “styles” of instruction.

Midjourney

Midjourney tends to like vivid, concrete descriptions. It also supports parameters (like aspect ratio) if you use them.

What usually helps:

• sensory details (rain on asphalt, neon reflections, fog)
• composition words (three quarter, wide shot)
• optional parameters if you know them

What usually hurts:

• long conflicting style stacks
• trying to force 10 different scenes into one image

Stable Diffusion

Stable Diffusion is often more “keyword forward” and benefits a lot from a clean negative prompt.

What usually helps:

• strong subject keywords + modifiers
• separate negative prompt to remove artifacts
• being specific about anatomy, hands, text, watermarks if those are problems

What usually hurts:

• vague wording with no anchors (no setting, no materials, no camera)

DALL·E

DALL·E typically works best with clear natural language, like you are briefing a photographer or illustrator.

What usually helps:

• explicit scene instructions (who, where, what is happening)
• clear style and medium
• fewer keyword chains

What usually hurts:

• messy lists of comma separated buzzwords

Prompt ingredients that instantly improve results

1) Add one strong focal point

If everything is important, nothing is. Make the subject obvious.

Bad: “A fantasy city, dragons, heroes, war, magic, epic, everything” Better: “A lone knight on a rooftop watching a dragon circle the city”

2) Specify materials and textures

Models respond really well to physical details.

Try adding:

• “brushed aluminum”, “wet cobblestone”, “velvet cloak”, “smoke stained concrete”, “frosted glass”

3) Use lighting as mood control

Lighting is basically the easiest way to steer emotion.

• Golden hour: warm, nostalgic, gentle shadows
• Neon: cyberpunk, nightlife, high contrast color
• Low key: moody, dramatic, shadow heavy
• Soft light: clean, flattering, editorial

4) Composition is your framing cheat code

If you hate “random framing”, call your shot.

• close up, portrait, wide shot, top down, macro, isometric
• add “centered composition” or “rule of thirds” if you want more control

5) Keep styles clean, not stuffed

Pick one main style, then one or two supporting modifiers.

Example:

• “watercolor illustration, loose brushwork, paper texture” instead of
• “watercolor, oil, 3D, anime, cinematic, unreal engine, hyperreal” (the model just shrugs and guesses)

Negative prompts (when and how to use them)

Negative prompts are most useful for Stable Diffusion, but the idea is universal: list the specific problems you want removed.

Common negatives:

• blurry, low res, noisy, jpeg artifacts
• watermark, text, logo
• extra fingers, bad hands, deformed anatomy

Keep it practical. Do not add 80 negatives just because you saw a template on Reddit. Add what you actually want to stop happening.

A few copy ready prompt templates

Template: Cinematic character portrait

Main prompt:
A detailed portrait of [character], [age], [distinctive features], wearing [clothing], in [setting], [mood], cinematic lighting, [shot type], [camera/lens if desired], shallow depth of field, realistic skin texture, sharp focus, high detail, [aspect ratio]

Negative prompt (optional):
blurry, low res, watermark, text, extra fingers, deformed hands, bad anatomy

Template: Product hero image (ads, landing pages)

Main prompt:
A clean product hero shot of [product] on [background], [color palette], studio lighting, soft shadows, minimal composition, high clarity, realistic materials, commercial photography style, space for text, [aspect ratio]

Negative prompt (optional):
logo, watermark, text, cluttered background, blur, reflections hiding product

Template: Environment concept art

Main prompt:
A wide environment concept art of [place], [time of day], [weather], [key landmarks], [color palette], atmospheric perspective, volumetric light, high detail, cinematic composition, epic scale, [style], [aspect ratio]

Negative prompt (optional):
low res, muddy colors, blurry, artifacts, text, watermark

If you want consistently better results, do this one thing

Generate a prompt, then iterate by changing only one variable at a time.

• keep subject the same, change lighting
• keep lighting the same, change composition
• keep composition the same, change style

This is how you stop guessing and start controlling the output.

If you are building lots of creative content around your visuals, pairing good prompts with a good writing workflow helps too. I usually keep everything in one place so the concepts, captions, and descriptions stay consistent, and tools like Junia AI make that whole process less… scattered.