whats up my dude..nice work here..your lead piano sounds a little harsh - I would mess around with the velocity or layer it with something else and pull the volume down. i like the grimey, distorted 808 that you used but it would sound better if it was mixed better. It drowns out the kick at times. I typically keep my 808s about 10-12 dB below my kicks and I make the kicks the focal point by starting the mix with the kick first and mixing everything else around that. That way it sounds like the kick is basically the attack for the bass. I would also throw some 16th notes in there just to create a few transitions. That sample you threw in the background is a nice little ear candy though. Good work and thx for the listen!!