Well right off the bat the synth/mallet instrument seems a little loud. Strange melody but somehow works. Bass has that sizzle sound to it, so (unless it's the wrong type of DnB) it works. Beats are good, snare is a little weird at some point. But it hits heavy ~2 min. Good on yah man, got a good thing going there. The outro of the first drop and intro of the second combined might be a little long, but as your melody, being long as it is, takes a while to get over it's understandbale why. Got some great basses in there man.
Keep it up.
Steve (aka Dj Synergex)