Nicely done overall
At first, the blue background didn't look like it suited the flash, but after about 10 seconds, it really fit in quite well. I thought it was a bit random, but when it's taken in the context of the whole thing, it is very nicely worked.
I think you could do better with the sound quality, as it was a little static-laden in places. Are you thinking of making further flash of this style, or are you going to branch out into other styles, as you've proven that you are a good animator when it comes to Frame by Frame.
Perhaps the next project is worthy of more depth to the pictures - colours and maybe backrounds as well?
[Review Request Club]