Not bad for what it is
I have to admit, I don't like the style of a nose that doesn't indent underneath. I mean like where the top lip starts to angle out and... Nevermind. I didn't like the song at all, just not my thing. I loved your animation though. It was very smooth. I hope you make something with a solid plot sometime, it would probably be very good. I have to admit though, for me half of the flash is always plot. Since this flash has no plot, I can't give you more than half a score. Also, I can't stand it when people try to influence a vote in their author's comments. I can understand mentioning how long something takes, some people like to know that, but the fact that you had to say it was mouse drawn (and capitalize it no less) just screams "I'm insecure and begging for praise and attention. I demand that you be impressed by me."
Overall, this is a really nice display of animation and show of talent (at least at animating) but little else.