I animated this a while back. I remember it took me days. First I had to learn how to actually draw the human skeleton (The Atlas of Human Anatomy for the Artist by Stephen Peck is an amazing resource). Then I had to distill the ideas into the bare minimum required to get the picture across. Finally I drew and animated the whole thing in piskel. The animation process was quite tedious, at least in part because this was my ﬁrst try.