Some of the slices you picked for the vocal chops feel out of key with what you're trying to accomplish.

Needs more sidechain compression especially in the drop. There are many ways to accomplish this. I like to use automation or plugins like volume shaper.

 I really liked the intro, it sounds like Fox Stevenson´s Sweets which is cool. I also felt that one vocal was out of key, still they have a good reverb, the kick needs to be a more punchier and gain volume into the mix, a sidechain technique is the right thing to do and maybe a mastering so it sounds better?

I find a track with good ideas and potential but you need to develop them and learn more. Well done dude keep on working!
(Didnt know Ephixa was around here! Feel lucky that one of the best dubstep producers  gave you feedback

Cheers!

RE Edit