A very interesting take on orchestral dubstep... I think the piano is nice, though sounding out of key at some points, I don't know whether that's purposeful or not. I don't really think the percussive section that you currently have really fits an orchestral track, but it is nice for more hard type tracks. I think the bass growls/synths could have a bit more variety in the pitch section. But if you were to make all of those happen I would love to see the outcome! :)