Note that I'm giving feedback as I'm listening to this. This is actually pretty damn good! Drop sounds a bit messy, especially in the mid-high frequencies, mostly due to the lead you have. I think that if you shortened the notes there it'd fit together a lot nicer. Also think about lowering the volume of the bass in the verse, so that your drop sounds more impactful.
Not a real big fan of the snare you used for the buildup at 1:12, but that's personal taste. I should cut off a bit of its tail, just to be safe.
The drop at 1:21 lacks serious power, largely due to the lack of bass, and no, the growl you have doesn't count. At 1:41 you actually partially remedy this problem, though I still think the sub bass could be a bit louder.
The silence at 2:01 is a bit too long for my tastes, as it messes with the established flow of the song. The verse that follows is a bit empty, and I don't think that the stereo bass works.
The top at 2:51 again lacks bass like the drop at 1:21.
The idea is really cool, I'll give you that. You need to work a bit on the execution, but that can be learned with practice. All in all, this is still really good. Colour me impressed.