Specimen Diagram Overlay

Editorial · Diagram · Specimen

Recipe

The style is the recipe. The subject is yours.

The examples above were generated with Nano Banana Pro and Seedream 4.5. The recipes below are written for GPT Image and Flux, so treat the settings as a starting point rather than the exact run.

GPT Image

gpt-image-1

Updated 10 Aug 2026

Full sentences. Describe the scene, then the medium, then the flaws you want kept in.

Make it yours

This recipe describes a treatment rather than a thing. Put your own subject in and it is added to the end of the prompt.

Prompt

A high contrast black and white natural specimen printed over a technical drawing grid, with measurement lines, brackets and registration marks running across and behind it. The specimen rendered photographically with fine detail while everything around it is thin ruled line only. Plain white paper with a printed rectangular border. No readable lettering, marks only. Subject: a moth with spread wings.

Use the examples as a reference

Download the examples

Send the example as an input image to the images.edits endpoint alongside the prompt, or attach it in ChatGPT. It follows composition closely, so describe your subject firmly or it will copy the example.