First of all, great song! I really dig the atmosphere you’ve created here. I love the chords and the interaction with the pianos and bass. Well done. You can make it even better by improving the mix.
Decrease the attack of the bass from the very beginning to get rid of those annoying clicks
Increase the volume of the bass
Decrease the volume of the hat, which is way too loud
Slightly decrease the volume of the main piano and the lead
Slightly increase the volume of the soft piano (the one playing the high notes)
Increase the volume of the background stuff just like the soft percussions and the synths
The kick would benefit from a little more punch and volume
Personally I would increase the crisp of the reverbed stick a little more, just push the high ends slightly
If you want to improve your mixing skills check the mixing thread. I’m glad @slujr started this thread, this way I can always just point to this thread if someone asks anything about mixing and mastering instead of repeating advices. What I can always say is to just mix in mono first, that’s the easiest way getting a good result.