First of all, I think you should put your name at the beginning and end of the reel.
I'm also not sure about the music selection...it doesn't seem to fit. It looks like you have edited to the music and when the song says door a gate animates open, but it just doesn't feel right to me. That might just be me though.
It would be cool if your work transitioned smoother into each other. Right now it seem like hard cuts....I don't really know what I'm trying to say.
I think it looks really good. Very impressive stuff.