You have potential
Work on making those animations more fluid and spend a little more time getting rid of any unwanted noise around the sprites. I havent Animated in flash in a long time but i animate in 3D studio max and i know that 30 frames is a second. Try to keep that in mind as you animate so that your animations are not waaay too fast or waaay too slow. THe music was a good choice, however like the previous poster said was a little too short and looped awkwardly. With that said, I say keep working on this stuff, Pretty good for a first attempt. Definitely keep working on your technique and just the little details. Keep those animations smooth and you can make a nice movie there