Nice track! Love the intro and the reverse pads (?) stuff you have going on. Drums are great too. Heres some constructive cristism!
+As I said, intro is great. Simplistic but sounds sweet.
+Track develops well throughout! I find a lot of songs in this genre are very repetitve and I get bored quite often (admittedly DnB isnt really my favourite type of music) but this is good. New sound effects and instruments introduced throughout really helped this song!
+The filter sweep FX works really well. I dunno if its a sample or you did it yourself but it fits perfectly. I mean the sounds at 1:38 and 0:00.
I dont really know what to say to improve on since Im not really an avid DnB listener, but I'll try anyway all down to my personal preference:
-The wub effect sounds cool, but maybe it would be worth automating the timbre somewhere throughout the track, just so it sounds like its evolving more. Gets a bit tiring.
-Ending seemed a bit forced? Maybe too sudden. Personally I think it could have done with the song slowly building down before it ended. Again, just my preference
-Add a few more drum loops, perhaps. I think theres some subtle changes but nothing too drastic. The drums sounded good but they could have evolved more.
-I would say its a bit too short. I think you could have added another final part and an outro section.
I hope this helped. This is really nice stuff, it's not really my style of music but I can tell a lot of effort was put into this and it worked out well, nothing too much to worry about. Keep it up!