Yop, I try to give the more feedback I can but hard dubstep just give me a headache so I'll be quick!
Right Behind You; it's 4:40 with like 2 main parts, no breakdowns, no intro, no outro, no build up/down effect. You have to put much more variations in your tracks if you want the listener to stay!
Kick and snares are exactly the same from A to Z, change grooves! Deconstruct a track of your favorite producer to see how he does to variate things!
Well at least that's where I'd began to rework.
Ba-Bang; same problems here, it just don't move! And you have equalize to your different basses (and sub-basses? i don't hear any), because it's too much chaotic, there's too much different basses sounds and they drop louder or very lower.