To create the dancer's shadow images, I used the following 3D model;

1) 3D model (MorriganAensland 2 TheWaveVR) Public/Remixable (CC-BY) (C) by Evol-Love

https://poly.google.com/view/1ByZvMR_WkD

License Terms:

https://poly.google.com/view/1ByZvMR_WkD

https://support.google.com/poly/answer/7418679

Right-click → Save Picture As... → unnamed.png → dancer_shadow0.png - dancer_shadow63.png