not bad but u could've used a much heavier bassier wobble so it can bring out the sub bass something a little grimey but not to grimey know what i mean. when your making dub step its all about the bass and what sound the wobble is making when its being added to the sub bass or any sort of bass resemblance.
but over all not bad just need to add a few more drums and a diffrent wobble sound that all :3