Hello. The skin is excellent, I'm using it for my current run. Could you tell me what software I could use to create similar renders? Is there any automation for compiling into a single file? Could you give me a brief overview? I'm familiar with code, but not so much with 3D and animation. But I want to try creating my own skin.

So you would use Blender to do all your renders and animations, it's free. I use 5.0 ; I also tend to use MMD models since they're the easiest to work with in my experience. If you chose to do so, you'll need the MMD Tools plugin for blender, just google it. Otherwise, everything else, animations, renders, etc, it's all set up individually, but you can follow this video to set up a proper blender render file:
https://www.youtube.com/watch?v=h36kd6wiWy8&t=670s&pp=ygUgbWFraW5nIHNwcml0ZSBzaGVldHMgaW4gZmFjdG9yaW8%3D

This is very useful overview.
Thank you very much! I will look into it.