Better audio. Please.
I admire the fact that you fit so much audio into such a small file size, and I'm glad that you didn't create a 5mb file for a 60 second animation as people have been known to do.
But in this case, I really think the audio quality needs to be improved, even if it means a larger file size. At some points it was literally uncomfortable to listen to.
The humour was solid, and the graphics... well, they got the job done. A good effort.