Not that bad!
It's a cool sprite animation only for this you get 2 stars from me. The sounds were on the right place (1 Star) the animation was okay (1 star) and you managed to create a feeling of action (1star)
Makes a total of 5. Seems not to be much but more i can't give you.
Seems like you should push up the frame rate to make that video faster. (If that slow feeling depends on my computer forget what i just said about it) You added no bckground music big mistake! Music is one of the most powerful mood makers! And the clouds were cut. And all is covered under a "something is missing" shadow....
Have seen worse videos on the front page and for this you get 1 star bonus ^^ Keep up the work some day you will show us all!!!!