hmmm.
The music was the best part of it. Some advice for improvement:
- use sound effects (like punching sounds, there weren't any when Jake was fighting those orange things.)
- tighten up the graphics (I know your new at flash, but that's sort of a lame excuse.)
- spend more time on making other flashes (Seriously, if you spend an ungodly amount of time on making it they would probably turn out a lot better. Who knows, maybe you'd even get some NG award.)
- use voice actors if possible
That's all I can think of, just keep practicing and you'll surely get better.