Pretty sure that's not how human anatomy works... But whatever I guess.
Anyway, it was a pretty good animation for how short it was, and the sound and animation was pretty good. Aside from it being really short (which I know was probably intended), it was pretty well done. There isn't really much to complain about in this one since everything was pretty good quality.
(Before anyone asks: the first comment is a joke and not part of the review. It has nothing to do with the rating or review itself. Sorry, too many comments in the past have made it where I have to explain this before I post otherwise people misunderstand.)