Not bad. Some areas could do with some work but overall the animation was good.
I'd recommend that you pay attention the the camera work, I'm guessing that you're probably using vcam in this, which makes things easier, although in places I'd say the camera work is a little jumpy in places.
Also the sound quality left a little to be desired. Try and improve on the quality of the vocals if you can by either exporting the flash with a higher audio bit rate, or use a better microphone.
On the whole, a good animation.