Nice Try

I used to draw with a mouse fairly well actually. On paint at least.

I do have to say your hand looked rather deformed on the mouse, since it was out the outside. Thumbs more then likely are on the side of your hand close to your body, On the right hand it will be on the left and on the left it will be on the right.

Other wise I thought it was a fairly good flash. A bit blocky (or choppy?) but I am not a flash animator so I don't know how to fix that to help you.