This is certainly very unique. I can see it working as a forest theme for a game, so I guess you managed to capture the feeling of "autumn" fairly well.
I actually had to hear this 4 times to figure out what kind of criticism I could offer. It's beyond my level of production, and I could definitely learn a few things about mixing from it, hopefully. The only thing I can say is that the pads and strings can be slightly overwhelming in some parts, and not all transitions flow completely smoothly in the beginning. Other than that, it's great.
Jernemies 
