I thibk you may need to..
Add some compression on those drums. Also MAKE THEM L O U D E R! Drum n Bass isnt the same with quiet drums. I can barley hear the hi-hat!
Add some more to it. By that I mean... make more than the same thing over and over! Vary it, add dynamics (Soft like Pads... Heavy and Grudgy bass)
You faded out well, but add some reverb or flangers to your bass please xD
It was boring and very repetative. Do another version, and dont take this personally, its only constructive critisism.
wow, finally a decent and worth while critising comment unlike the "this is shit" comments that i h8, thanks but i cant do it again, i've got fl demo