This is really great, I love the atmosphere you've created in the song. All of the reverb and delays really fill it out. One thing I noticed is that the guitar sometimes gets buried under all of the low end stuff, maybe bump up some higher frequencies in it so it will cut through at those times? Good stuff though, I look forward to hearing more from you.
I like how you've managed the delay, only hitting certain instruments with it and hitting them with different levels. If this were behind a game or movie I would be totally into it, but by itself it drags on a little bit. It's very mellow and I get that, but it doesn't quite hold my attention. It could use a few more melodic riffs or even a few little rhythmic fills, just something to keep it interesting over the straight beat.
Other than that, I'd recommend bringing the piano up just a tiny bit in the mix. Good stuff overall.
Please contact me if you would like to use this in a project. We can discuss the details.
* Remix of a third-party piece.
Excercise caution when using it, refer to author comments / contact the author for details.