I'm with sequenced on the mixing & mastering but you will always hear that crit from techno snobs. Great work you two. The strings were epic as fuck. Smart move to have two authors working on this given that the artwork seems to have a hard duality.
I had to speed through it a second time when I noticed that lovely piano melody at the end. Was that the only part to feature a piano?? Maybe the mix would have been fuller with some underlying piano chords or little piano motifs through out but given how intentional everything seems, perhaps it was decided not to do so? Either way this is a smart piece and I love it :)