Nice wubbing, nice melodic progression in the intro. One concern, though—dubstep has drops in it, right? I couldn't clearly make out where the drop was supposed to be. At about 1:50? It could maybe be a bit more defined (and what happened to the wubbing at this point?)...
The wubbing comes back in at 3:00 or so, but that part feels like a buildup to a second (forthcoming?) drop. I guess the second drop would be at about 3:25?
The pads are quite pleasant, and give a really great atmosphere. I like the feel of the drums, though maybe they could be a touch louder.
Another breakdown at about 4:25. You bring in some vocals, and they're good but maybe could have been in the beginning of the track as well. Actually yes, I really like the vocals.
I would concentrate on structure with this track; it tends to wander without a clear direction. There's a lot of great material, though, so it's likely just a task of cutting and pasting and rearranging. Finally, the mixing was clear, no mud or anything, so good work on that.
Hey man! You know, besides what kdk said, I'd work with some LFO speed too. Like you have it wobbling three times on one bar, then 6 times on the other (always working with triplets). I liked the House-thingy you made too!