The thirteenth and last creature in my transformation marathon animation:
http://www.furaffinity.net/view/4275451

I think this may be my favorite background of the series. I fiddled with it for much longer than most of the other backgrounds (it might have taken a whole three minutes), and it was worth it. I'm happy with the fish too. Like snakes, it's hard to draw an anthropomorphic fish and have it not look like either a fish with arms or a human with gills. This one's closer than most of my previous attempts, at least.

Sketched with pencil, "inked" and colored in Photoshop. Comments and advice are always appreciated.