Difficult to judge without my monitors, but I don't notice any obvious problems. Maybe the synth dropping in at 4.10 is a bit overpowering the rythm, but that might just be the whole idea.
Structurewise it's a bit long without much movement or progression. You have the different parts obviously, and you can hear the relation between them at some parts, but the abrupt transitions make the song feel a bit patchy and within every 8 or 16 bar "theme" there's little movement to my feel. Absolutely dig the bird field recording you used though, pretty nice.
The part that starts at 5 minutes sounds a bit dissonant. The pad, the lead chord chops and the bass seem to follow a different harmonic movement. Interesting idea, and it can work if you keep the elements separated frequency-wise. It's like playing a C and C# on a piano. If you take the adjacent notes, that sound hideously bad. If you leave an octave in between, they call that a "flat nine" and it becomes an often-used chord coloration used in jazz. I'd pay attention to that.
The part starting at 2.38 is my favorite one (I'm a sucker for funky tunes). I missed that feel in the remainder of the track. I would personally let that one come back.
My 2 amateur cents.