https://www.youtube.com/shorts/14c6XfiHaes
This scene was made entirely inside Blender 5.1. No video generative AI.
For the painting, I have used Ucupaint add on.
The shark was modelled and rigged inside Blender. Animation was a combination of Geometry Nodes and Rigging.
For more details, check the video description in the link.
Happy Blending!