Definately needs improvement.
All I could see in this flash was that you've mastered inserting decent music into the flash and tweening. It just seems like a lost cause without having any plot or characters. The repetition is boring and make the viewr immediately lose interest. Definately not showing much skill here with flash, but it means you can improve.
Simply put more effort into a flash. Add a background and characters, create a storyline, it will all come together nicely. I'd be glad to help with it if you wish. THis definately isn't the worst flash I've seen, and I'm almost positive that you can improve from this. Keep up the great work!