Very cool overall! I have a few suggestions...
-I'd try adding some reverb or some compression to the string/pad that comes in at around 0:27. It sounds a little off because it's a little quiet but also because the piano has a great stereo effect going on making the pad feel small.
- The claps that start around 1:14 are fine at their volume. I don't think percussion needs to be at the forefront of every song personally. That said, I think some reverb would sound great with these claps.
- Finally, I'd really like to hear the Arp at around 2:53 be much more prominent. I think it sounds great and it's sad to hear it get washed out by all the other synths. I actually think it could be the main hook towards the end of the song if you get rid of some of the high end on the other instruments.
Just some personal suggestions! It's a very nice song overall! ^_^