Definitely not one of your first songs.
I'm really liking this stuff.Proper sick bass synths, my only complaint is about the drums.The kick seems to stand out alot more than the snare and at some parts the bass overpowers the drums.Try compressing the bass and maybe EQ a bit more the drums.Overall i think, once finished this track will be good enough for releasing, as long as you are determined to make it right and i'm sure you will :D.
10/10 5/5 Faved.
PS. I also produce dubstep and i'd be flattered to see a review from you.
Cheers :D.