pretty good :)
Your drawings were good, also the faces when they start freaking. The voices were okay, and the animations were not fluid at all. The frames get the story across enough but it just seems like a bunch of pictures spliced together to make that story; which is exactly what it is, therefore it does not actually feel like one is watching a video about people in such a situation. Then again, if you put in that kind of effort it would have taken at least a month to finish it ;)
Overall it was pretty good.
P.S. might want to get actual sound fx instead of making them with your mouth :p