Okay, this might sound harsh, but It doesn't feel musical. Like, at all. It didn't sound good, your bass wasn't gritty enough, and your use of the LFO really just overall did not work well. Now, I know that it is your first dubstep attempt, so I decided to give you 2.5 stars for the attempt and effort I'm sure you put in, although my first (real) attempt at dubstep (techstep) sounds a lot better, so it's not really an excuse-I do, however, see that you are quite new to making music, so I'll just pass it off as you have no experiance and don't know your DAW very well.
Im a new dubstep maker too , so i cant give you tips or anything but i really did liked it