If you are looking to "produce" or recreate a similar animation, 1. Pre-Production & Character Design
The original creator, , often posts behind-the-scenes content or tutorials on platforms like Newgrounds or Patreon .
Professionals often use Cycles (Blender) or Arnold for realistic lighting and shadows.
The file is widely available on specialized community forums and art hubs for those looking to study the specific framing and timing techniques used.