Intense.
I love what you did working off the original melody, it's a shame it's so short, but length could always hurt something if you don't know where you're going, and could make it repeditive hurting the epicness imo, I never count off for length if what there's good. You've done more then what I'd be able to come up with doing this style.
I've come back and 5'd/listened to it all week. The way it transitions from the intense part, with amazing drums, and the original melodies is amazing, and smooth.
It inspired me to attempt a dubstep remix of lillium, which i've never done dubstep. Just played with lfo and though, hey, bet I could make a wub song of it. It's uploaded to NG if you want to hear it, but no obligation, it's not much if compared to yours.
-stratkat