I love the idea and arrangement for this piece, but I think that mix needs to go back to the drawing board in a few places, at the instrument level. The master is of suitable compression it sounds like.
1:16 that djent guitar has a great rhythm and tonality, however I can't tell if it's double tracked or simply chorused. For more drive, space, and grit, it's best practice to double track or even quad track, which is to play two separate instances of the same riff panned left and right. The difference in ms between attacks and releases of the two instances make all the difference.
This would also be important at 0:20, where I also can't tell if I'm hearing a chorused or spread mono signal or two guitars panned separately. I would hi-pass the guitars at that point. They could also be eqed to emphasize the high mids a bit more and supported with a cleaner bass and sub. Cleaning out space in the low mids and bass range to make room for those chugs will help to push them harder.
1:10, your double bass pedal is not cutting through the mix. Needs sidechain applied either manually or via automation.
Outro is solid with multiple great modulations that make sense. Though I would back off the volume of the vinyl noise -- nothing else is in that space.
Cutting reverb amount and low reverb freqs would do a lot to clean up this mix and help push it harder.
In general, though, I love the experimentation and combination of elements from dubstep, metal, and choral/orchestral. In several instances, particularly your dubstep growls and bass elements, I think reducing the stereo field and volume slightly would help significantly. Same with any colorization. Then it's a matter of making sure that any other percussions cut through.
I've listened to this 3x through and still am very much enjoying your arranging. Great work!
8.1/10