Here's a few things I noticed. Your kick drum is stereo, which is bad. Make it mono for better clarity. Your beat is very aggressive, but your normal buzzsaw bass is a bit weak. After it builds up, it just goes nuts. An awful lot of panning going on, which is a nice effect. But with the amount of filtering you have, it gets overwhelming. It's very raw and brutal, and sounds really good. I think the random arp was out of place, and didn't flow with the bassline in my opinion. For what you have here, I'd say its excellent, and would sound great extended and spaced out a bit in a full song. For a loop though, you have too much crammed into such a small timeframe. Overall great job, just maybe look into monotizing your kick drum.