Looking at this track, I think already that it needs mastering compression, but that it doesn't sound like it's mixed too badly at all.
Intro sounds like it wants to be dubstep but is chilling out where it is. That's perfectly fine. For trance, it does have that progressive feel to it which I appreciate.
Overall, I think mixing is done tastefully, though I don't like the choice of what sounds like a nexus keys piano at 1:23. That sound is quite common and can stick out to anyone who listens to EDM as cliche, very chorused, etc. I think you would do better with a piano that sounded drier, sustain, and apply a pingpong delay.
This brings me to hihats -- these seem to sit in relatively the same space, centered. A lot of other elements do as well, minus the bass -- I would actually isolate up to about 200 hz on the bass to dead center.
Beyond that, I enjoyed your melodies and the slow, dreadful drive of this piece. Sounded like a villain about to execute his plot.