Wowee, this is some nice stuff! :D Sounds like in some parts a synth is sidechaining other synths and could be due to mixing. The leadd that comes in at 2:04 sounds a tad bit too loud and could be turned down a couple db lower.
mixing is really harsh but that's not much of a problem, really good ideas here. Melodies are on point as well
The problem was that a synth was accidentally sidechaining the rest of the track as well, but it should be fixed now