I like the melodies and themes, as well as the mood. I think some of the instruments were a little too harsh, like the one at :23 and the melody instrument at the beginning. It's well-structured and smooth-flowing, though. Still, I felt like the beat was hiding under the other instruments for most of the song. Did you use a limiter? The piano was a nice touch, but it ends a little suddenly. I think this could make a great loop. It has a lot of potential, but I think you could clean up some of the details a little. Hope this was helpful! ;D