So so new and different.
That improv thing really works for you. Your characters are funny and unique, and the whole thing is just odd as hell. This is going in my favorites. My suggestions are as follows
1) Go and get yourself a halfway decent microphone - what you've recorded is good, but the quality is awful.
2) Edit out some of the crappier parts of the audio - I dig the way you just make an animation to the improv you do on the fly, but there are some really good funny parts, and some slow lame fumbling parts. If you edit out the really bad stuff first, you'd have a better overall animation.
Overall though..This is great...make more.