OK then.
I'll organise my good and bad points with this Flash.
GOOD:
- Interesting concept.
- Good length.
BAD:
- You should've used motion tweens. The way everything moves looks very wooden, and a little smoothness really helps the animation to be honest.
- For a normal-sized Flash, very little is actually happening. The moving things are very small. Next time, make more things happen at a time.
All in all though, you did a decent enough job.