Relaxing. Mixed well IMHO, though the drums could use some more fuzz for my tastes - not lower frequency, just a little less crisp. Definitely has the feeling of an outdoors scene, with a hint of darkness. The only thing I'd say is that around 1:20 or so I was expecting the melody to pick up and shift into a different, more complicated phrase. Not necessarily louder or anything, just a break from the main line - as it stands, it doesn't have much in the way of movement. Not necessarily a good thing for game loops, as it gets hard on the ears after a while.
If you did that, and bridged it back to the original phrase (respecting how it would loop, of course), I for one would be proud to have this in a game.