Prompt.Lab

Practical prompts / Image generation

AI image prompt generator: describe the picture you actually mean.

Learn how to create AI image prompts with clear subject, composition, lighting, style, text, constraints, and iterative editing instructions.

Prompt.Lab Editorial11 min readOfficial sources reviewed

Image prompting works best when the request behaves like a compact creative brief. Instead of stacking random visual adjectives, describe the subject, environment, composition, light, material, mood, text, and constraints that genuinely affect the final image.

The useful principle

Describe relationships and priorities, not only a bag of keywords.

Say where the subject appears, what the viewer should notice first, how elements relate, and which details must remain exact. Use editing language for revisions instead of rewriting everything from zero.

What you can use these prompts for

Start with the outcome you need, then add the information that changes the answer. These are common use cases—not rigid formulas—and each one should be adapted to your real material.

01

Subject

Identify people, objects, expression, pose, clothing, materials, or product details.

02

Environment

Set location, era, weather, background activity, and spatial context.

03

Composition

Define framing, viewpoint, subject placement, depth, and negative space.

04

Lighting

Name direction, softness, time of day, contrast, and important reflections.

05

Visual language

Describe medium, design tradition, texture, geometry, and finish concretely.

06

Text in image

Provide exact wording, hierarchy, placement, typography mood, and legibility needs.

07

Constraints

Protect logos, product geometry, identity, palette, or elements that must not appear.

08

Edits

State what to change and what must remain identical from the previous image.

A reliable way to build the prompt

1. Start with the purpose

A profile picture, product advertisement, editorial illustration, and presentation cover have different composition and legibility requirements.

2. Build from large decisions to small details

Establish subject, scene, framing, and light before surface texture. This keeps the visual hierarchy coherent.

3. Use precise text instructions

Put exact copy in quotation marks, define its location and hierarchy, and keep it short enough to remain readable.

4. Iterate with controlled edits

When one image is close, preserve composition and identity while requesting one or two specific changes. This is easier to evaluate than changing every variable at once.

Prompt templates you can copy and adapt

Replace every bracketed placeholder with real information. Keeping placeholders visible is safer than letting an AI invent missing facts.

Premium product image
Create a square editorial product photograph for an Instagram launch.
Subject: [product], centered slightly right, exact shape and label preserved.
Scene: deep midnight studio with a matte stone surface and restrained violet atmosphere.
Composition: close three-quarter view, generous negative space at top left for a headline.
Lighting: one soft indigo rim light, subtle warm key light, realistic reflections.
Style: premium, minimal, photographic—not a 3D cartoon.
Constraints: no extra products, no invented logos, no text, no distorted packaging.
Character illustration
Create a vertical storybook-style illustration of [character] entering [place]. Show a clear emotional beat: [emotion/action]. Camera at eye level, medium-wide framing, environment readable but secondary. Use [palette] with one luminous accent leading the eye toward the character. Keep anatomy coherent, hands visible, and leave clean space at the top for a caption. No embedded text.
Poster with exact text
Design a 4:5 poster for [event/product]. Primary text exactly: “{HEADLINE}”. Secondary text exactly: “{DETAIL}”. Use a bold sans-serif hierarchy, high contrast, and generous spacing. Place the headline in the upper third and the detail near the bottom. Visual concept: [concept]. Palette: [colors]. Ensure every letter is readable; do not add any other words or logos.

Why specificity changes the result

Too vague

Make a cool futuristic image in purple.

More useful
Create a 4:5 editorial illustration for an article about better AI prompts. A small luminous paper character organizes scattered violet fragments into four clean panels labeled Role, Objective, Constraints, and Output. Deep navy background, indigo rim light, premium cinematic composition, readable hierarchy, generous top-left negative space, restrained detail, no extra text or logos.

Quick quality checklist

The image’s purpose and aspect ratio are defined.

Subject, action, environment, and composition are explicit.

Lighting and visual language support the message.

Exact text and placement are specified only when needed.

Protected elements and unwanted elements are clearly named.

Use AI as an assistant, not an authority

Generated images may contain incorrect text, anatomy, product details, trademarks, cultural stereotypes, or visual similarities you did not intend. Inspect every asset before publication, verify commercial rights and platform rules, and obtain consent for real people’s likenesses or sensitive personal material.

The takeaway

A strong image prompt is a creative brief with hierarchy: purpose first, composition second, important details third, and explicit constraints throughout.

Turn theory into a better result

Your idea is good.
Give it better instructions.

Paste a rough request into Prompt.Lab and get a structured prompt for ChatGPT, Claude, or Gemini.

Try Prompt.Lab free →

Continue exploring

View all →