I can't clearly say much about the rest of things, but here is the old post by our coder
As the artist, I haven't yet finished only half of the 3rd stage background and the 3rd stage boss animations (We need to redesign her along with consulting with portrait artist).
For now, the main source of my busywork is keeping all my assets polished and fitted. Especially the animations. I've definitely honed skills now, but some of the earlier animations lack in quality. Fixing/remaking those can be downright grueling and leaves me no time for character portraits