Now, this is very nice. it is so soothing to look at. personally, I would have toned down the green just a tad as it appears to jump out of the rest. Still, it gives off a nice sense of a quiet and restful state. Bumping up.
This picture is a little on the small side, 640 is the max and should be aimed for the create a good impact, also the border is totally overpowering for the image.