If you're ever curious about the Silverpine's dev NPC creation process, it basically involves using Pony to generate an image of the character with 'anime' semi realistic settings, then TrypoSG to create a 3D model of the character with texture (There is a github for it online that teaches you how to set it up, you'd need to install a few things using CMD if you're on windows, notably Python libraries and such, takes some fiddling especially since you need specific versioning for it to work proper, possibly also setting up a virtual machine for it) once that's done, they took front, back, and side views of the character, and reduced their resolution to a rather low number I can't quite recall.