Keep the model context, then adjust subject, style, lighting, camera angle, and output ratio before remixing.
Replace vague nouns with concrete subjects, locations, colors, materials, and mood words.
Run one strong version first, then iterate only the parts you want to change.
Prompt
Nano Banana Pro prompt: Create a hyper-realistic mirror selfie of a person holding the product in one hand. Use natural bathroom lighting with a believable handheld phone reflection in the mirror.