I saw that you were looking for some reviews, so ill be straight with ya - there is a lot of work to do here. That said, if you really are just starting out then this is not a bad job at all. If you keep tweaking it, this has what it takes to be a cool dubstep track. I don't make dubstep mself but I'd suggest upping the BPM, and adding a melody, something to give the wubs some soul! It's tough being new on NG and looking for feedback, I hope this helps! Check out some of my stuff and see if it gives you any ideas!