Wow. ^^ Animations... The one thing I wish I could do, but can't. It takes so much time and patience, skill and practice, and not to mention money. Even short ones take a long time. I was doing pretty darn well on one I was working on, on MS Paint before my old laptop crashed and I lost the entire thing.
I have no intention on doing Sunset Shimmer because she is best known for her human form to begin with. My contribution would be nothing more than putting her in fantasy clothes. As for the classes, I typically dig into D&D lore, other video games, or I sort of make them up like I did with the MuffinMancer.