I'm sorry, but, where was the drop? Maybe my expectations are a but high when it comes to dubstep, but I didn't feel it. The biggest problem about this is how long it is. A 6 and a half minute song isn't what comes to mind when I think EDM. And I hear a lot of "dubstep" tracks that are like 8 minutes long and there's literally no drop. It's like people lose sense of it. And what was 1:49 - 3:43 about? It was really long and could've been cut out. The beats in that time frame changed way too quickly and was too slow.
If you've never listened to these artists I recommend listening to Rukkus and Xtrullor. They both specialize in dubstep really well. And if you look at Rukkus' older songs you can see their quite simple as well.
I hope I didn't hurt your feelings or anything, trust me, my songs are probably worse.

Has way too much bass in the mastering; save that until the drop!! Interesting take on the genre, it doesn't follow the conventional rules; which I appreciate highly. However it sounds way too static, like certain parts of the song don't connect at all. It's not always a bad thing, but in this case it is. The part at 4:20 - 4:55 is very unnecessary, seriously, it fucking annihilated the shit out of my eardrums!! And the end comes very unnoticably. It's sounds like somebody hit the pause button before the real ending. Has way more potential than used, some changes applied and the song would be a lot better :C

Try to give some attention to the mastering and 0:53 it's very repetitive, the melody is very good! Just work on the intro and the changes you make :)

Not bad!