This is how first submissions should be
After seeing countless "this is my first" flashes where it's a face floating around in a box, I have to say it's refreshing to see someone who waited until he made something worthwhile to submit.
The animation was smooth, and the sounds were put to the images quite well... The stick figures, although basic, did move flexibly, which is always good to see. The room for growth is evident, but it's also evident that you spent time and effort into learning flash and making this. Good work.