I like the buildup throughout the piece. I think it pays off very well. While I do like the energy the piece has now, I think upping it a bit with some more intense percussion would really pay off. I think that the ending was a bit rushed. You have a really nice long buildup into a nice payoff, and then you bring the energy back down. I think for the amount of energy you had built up, the ending would benefit from being extended a bit.