Begin with one specific change. A clear boundary between what changes and what stays makes the result easier to judge.
Keep the original and every successful intermediate version of an important image.

Explain the role of each photo when using several.
If the edit changes too much, return to a good base and narrow the request instead of repairing an increasingly different version.
Generative editing does not guarantee pixel identity. Strict local retouching may require a graphics editor.
The model may have rebuilt the scene. Request one local change and use a clear portrait.
Only when they add useful information. Extra references complicate the brief and sometimes affect the price.