Pretty good, actually.
I don't like the song a whole lot, but the animation is pretty good. Some of the parts were really pointless.. okay, most of them, so you could try actually incorporating a plot. The frame-by-frame stuff is a lot better than the tweened stuff, so stick with Frame-by-frame.
Also: "If you knew how young I was, youd appreciate this more :)"..
Ha. I know from experience that if you say something to the effect of "I'm 11 so please go easy on me", you're gonna get the lowest score you've ever seen.