What's the workflow they used to create a character like this in Arcane? *photo for refrence*

Disclaimer: I know you can use any program like Maya, Blender zbrush ect for modeling/sculpting and use a bunch of different programs for texturing like marmoset/ substance to create *any model

I'm wondering about this show's specific workflow because it's so unique! Anyone has any ideas In mind? This is part of my research for practicing proper modeling workflow