Production seems really legit, but I'm sorry. Everything is too compressed, too much muddyness. Also, you should try playing more with your stereo field, in terms of synths. I'm either hearing everything center or center to left.

I like the production but I think the vocal could be a bit more compressed, thus loud, and a bit more centered for clarity. But in some parts the vocal is really well distinguishable.

Great job overall, I like it.

it sounds nice

You could add a punchier kick, and layer your bass with more instruments, even if they differ slightly, and add effects and such, to make it messy and grimey.

Listen to tracks from UKFDubstep on Youtube to see what I'm talking about.