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 accurate expression reference! Both anime and real people work! With expression, pose, lighting and various accurate references, character control is now super convenient! ZH25O Creative Series Gemini 2.5 Flash Image Creation