What composition works best for the input image?

Use a clear subject, safe margins, and a layered background. Don’t place the subject on the edge, and avoid tiny text or dense icons—they often disrupt motion.

I only want camera motion—how should I prompt to avoid deformation?

Explicitly say “keep the subject unchanged / no deformation / ????????? change.” Limit changes to camera moves (slight push‑in, slow pan/track, mild DOF shift). Avoid words that imply shape change (transform, melt, reshape).