OK,
I hear a lot of Drum and Bass Music but your track is like 4-5 tracks in one...
and not like drum and bass, there is no construction in this track, 1 head melody, a bassline, the typical kick and snare beats. For example: http://youtu.be/2M8DRlPyUag

Make your track more simple: A Melody, some FX, basslines, kicks, some breaks, and the constuction must be simpler!

Is this your first track? For a first track is not to bad, work a little more to your tracks. If you need some help send me a massage, i will help you. [sorry, my english is bad]

Your Track!

The part at 0.00 - 1.50 doesn´t fit to the main part, the kick doesn´t fit to the Melodie. Overall it´s OK. The main part has a good and powerful kick and harmonize with the main Melodie.
I realize that you have a lot of work and effort put into this track.
Keep it up, you´re going the right way!

Awesome

A very good Mix!
just listen and you know what I mean...