I'll add more animals as I go. Each of these took about an hour. They're so much fun to do, and I really like the look of them. Press space to see the next one. They're in chronological order, BTW.
To stop the automatic animal changes (when the beat drops) press the up arrow. If you don't want to stop them, just let them be free. If you press the up arrow but want the auto-change to come back, press the down arrow.