>>5761134I'd say I don't work with museums, but I have a piece in a year-long exhibition in a museum an hour up the road right now, so I can't really actually say that. But I'm not an employed museum taxidermist or anything, I mostly just do it as a hobby on odd weekends. And, incidentally, I'm one of those meme people who have aphantasia, so if I've developed a better sense of space I could not possibly say.
YouTube and Facebook are where it's at for sculpture tutorials At least for things like polymer clay. You could probably find in-person classes, or just day-long workshops, if you hunted, though.