A Photo Becomes the Dancer
The uploaded image supplies the person reference for the generated scene. Use one clear photo with the person visible and facing forward when possible. This is a single-person workflow: you cannot combine multiple portraits into a group or upload a second reference photo for the same clip. A dance video from one photo starts with that image, then uses the selected room chip to set the scene. Check the photo before uploading so the person is easy to see and you have permission to use the image.