That is some pretty nice work you have done there! I like your choice of music, your pacing and your style. My only comment would be to shorten the whole sprikler scene, it seem to be a little long. I know what you where trying to convey, but It seemed to slow the piece down at the end. Other than that I thought it was some very nice work.
I'd like to add, that this is the kind of demo that gets you recognized. Why, because you were able to to weave a nice thread of work together and keep me interested. I would hope that you continue the great work.