nice beat
the vocals are too loud, though. the volume should be lowered so it's almost enough to hear them in the background. the filters you have on it would automatically make it blend in better if you choose to do that.
remove the reverb on your bass, though. that should be your main focus in building a dubstep song, so it should be the clearest noise you hear. if everything sounds like rain and blends too much, you don't get a powerful feel to your track. dubstep needs that feel.
good work