Action Back Pleat Opening Motion Study

Generate a 10-second jacket study from [action-back references]. The wearer slowly brings arms forward then returns to rest; the same back pleats open and close along their original folds. Keep panel boundaries stable and avoid exaggerated expansion.

Confirm required reference images and timing inputs are present before generating. Keep objects, identities, spatial relationships and light direction consistent. Render the clip when video generation is supported; otherwise supply a timed shot list, reference checklist and generation-ready prompt, labeled as a production plan. Do not claim rendered output without an actual file. Check the opening, transition and final frame against the stated counts and geometry.