How to Write AI Image Prompts That Actually Work

Most disappointing AI images come from prompts like "cool dragon" or "beautiful landscape". The model isn't failing — it's filling in every detail you didn't specify with the most average choice possible. Average choices produce average images.

The fix is a simple structure. After generating millions of images across models, the pattern that consistently works is:

Subject → Style → Lighting → Composition → Details

The structure, one piece at a time

1. Subject: what, doing what, where

Name the subject precisely, give it an action, and place it somewhere. "A dragon" becomes "an ancient jade dragon coiled around a crumbling pagoda tower". Every noun you add is a decision you took away from the model's averaging machinery.

2. Style: the single highest-leverage word

Style keywords move the result more than anything else: watercolor illustration, studio photography, 3D render, ukiyo-e print, cinematic film still. Pick one and commit — mixing "photorealistic watercolor oil painting" gives the model contradictory instructions and you get mud.

3. Lighting: where the mood lives

Two images of the same subject feel completely different under "soft morning light through a window" versus "harsh neon glow from below". Lighting vocabulary that models respond to well: golden hour, backlit, volumetric fog, candlelight, overcast diffuse light. Models like Seedream 5.0 are specifically tuned for dramatic lighting — lean into it.

4. Composition: direct the camera

Close-up portrait, wide establishing shot, bird's-eye view, shallow depth of field. Without direction, most models default to a centered medium shot. One composition phrase breaks the sameness.

5. Details: the last 10%

Textures, colors, small props: "weathered brass fittings", "cherry blossom petals drifting". Two or three are plenty. Past that, models start ignoring or blending instructions.

Before and after

Before: cute cat

After: A fluffy orange kitten sleeping inside a ceramic teacup, soft pastel illustration, gentle morning light, close-up shot, steam rising from the cup

Try both in the AI image generator — the free tier is unlimited, so testing costs nothing.

Three habits that compound

Iterate on one variable at a time. If the composition works but the mood is off, change only the lighting phrase. Rewriting the whole prompt throws away what already worked.

Match the prompt to the model. Precise multi-part instructions and in-image text favor GPT Image 2; fast stylized iteration favors the Nano Banana family; cinematic realism favors Seedream. The models page has the full lineup.

Prompt in the language you think in. SnowArt's free model handles English and Chinese prompts natively — nuance survives better when you don't route through translation first.

When you don't want to write at all

Two shortcuts: the AI Enhance button in the generator expands a rough idea into a structured prompt, and image templates skip prompting entirely — upload a photo, pick a look, done.

The best way to learn is volume. Generate twenty images, keep notes on what moved the needle, and steal the structure from results you like.