way too much compression/reverb on the piano, probably need to compress before the reverb
piano is too loud throughout actually.
usually you should take all the bass out of everything except the kick and the main bass instrument, and then make it so the kick and bass don't play at the same time - either through sidechaining or only playing the offbeats. like that piano and phased saw lead don't need any lows at all, really.
one thing that kinda helps everything sound grrreat is if you turn off the limiter on the master channel, mix with the instruments all at a lower volume than the kick, then turn it back on. usually. depends on genre and stuff!