Not so sure how I feel about the basic drum effects used at the end of the track. If it were me, and I wanted to use this kind of percussion, I'd introduce it earlier in the song and then insert gaps within it to offer opportunities for breathing room and tension building. Course, I'm not the type to use this sort of percussion at all, so take that as you will.
Aside from that, this is a very solid foundation, and I think you will get something pleasing out of the final product.