Need to make real electric guitar instead of that plastic comb which is being rubbed against a metal battery.
The beat needs to be deeper or completely absent (which would be awesome). Additional melody should be thrown in, for example, something with violins or synthesized organ. This should be 2 times shorter and have much more detail and voices. Needs more tension, epicness, and some sort of climax in the middle. And either a decent ending, or it should be looped.
Then this would go for a boss battle or at least a forest level.
But this is dubstep! No one cares! It's all like "meh, meh, plastic comb noise, repeat".

I like it.