Choose the reference
Use the background to set the tone, not to promise a specific result. The same pose can feel playful on a leaf path and deliberately serious in a quiet corridor. Generate one subject at a time, then watch the full clip and check the sheet, glasses, and final reveal before posting. A clear, front-facing photo gives the generation one subject to follow. Use only an image you have permission to submit, and match a person or pet photo to the scene you choose.