Choose the closest structure
A prompt for one bottle on a pedestal is a better starting structure for another simple container than a crowded interior prompt. Match the kind of scene first: principal subject, supporting objects and camera viewpoint.
Change one part first
Replace the subject description while retaining the rest of the prompt for an initial attempt. Then change a colour, material or light instruction. This makes comparison easier, although generation randomness means a pair of results does not isolate a scientifically proven cause.
Keep instructions consistent
If you replace a cube with a rounded plinth, remove the old cube description. If the new scene needs several products, update the old single-object constraint. Conflicting descriptions can make the result harder to control.
Describe the image, not a score
Explain which light, surface or framing you want. Phrases such as “high quality” alone do not specify the creative decision. Read the material-specific notes for concrete parts you can replace.
Judge the result for its intended use
A concept image for a mood board has different needs from a final advert. Check layout space, usable resolution, accidental text and subject accuracy. Review rights and platform rules for your own use; the library does not guarantee a legal clearance or production-ready asset.
Further reading: Google DeepMind's image prompting guide.