TYYY I'm not used to digital..
Almost forgot, here's my old one; waiting to find my apple pencil to do step 2...
Won't lie, I lost my apple pencil... never drawing with fingers again bruh.
I would say more than likely unfortunately
as far as i know there is none (dont quote me on that), but if you go onto the authors tumblr theres a pinterest board that shows each of the characters aesthetics and stuff.