Ooh melodic dubstep. Seventh chords. I like it.
Pros: I like the intro. It was my absolute favorite part. The build up to the drop was cool. I like the creepy melodic dubstep sound. I can hear the Serums sounds, I like them a lot. The basses are also really cool. I like the drums. The flow was amazing. I like how you changed the drop and melody every few measures. This feels like a Halloween track.
Cons: The build-up to the drop, while cool, felt a little out of tune. It sounded like it was on an E note and the rest of the track was in F minor. While E does work in some cases for F minor, it usually only works for when the chord is a C7 chord, not during the rest. I feel that the second drop was a little hectic. While that isn't a bad thing, I don't really enjoy when the drops are too hectic. That's just preference though.
Overall, you did a good job. I like what you did with it, but I think you need more practice with the seventh chords before this could truly be an actually good dubstep track. From my experience, the seventh chords work best before you go back to the root chord. All in all, keep at it. Too the future dude :) 4/5