Really nice! :)
A few good and less good points :
- The overall relaxing ambiance is really well thought!
- The wood sounds at the beginning are a good idea but they don't follow the rhythm, which makes them sound random
- The music evolves slowly, which could be annoying in an other song type; but since this is ambient, it was a good idea :)
- Talking about evolution, the music is neither repetitive nor feels like it's randomly put together; it all feels the same, nice job on this! ^^
- Around 8:10 and for a few minutes, the instruments fade away and leave the drums alone; it didn't feel as relaxing as the rest of the song. The instrument that plays a single chord for something like 8 measures also fell slightly annoying, and the melody could have been a bit more varied. This is only a minor problem, though; it did not affect much the quality of the song ;)
- The fade out ending doesn't really sound like an ending :/ But I understand it's hard to find a good ending for that kind of song
Finally, I stayed for the whole 14 minutes and I don't consider it as wasted time :) Even though I prefer the first half of the song, it overall felt very relaxing and is pleasant to listen to :D
Keep up the good work! ^^