Great shame about the sky here - would really like to see that kept more under control, especially as you've done such a good job with the tonality in the rest of the image. Is there fill-flash here? There's a slight cut-out feel to the foreground trees that hints at that, and it's very well controlled if it is. I'd personally have underexposed - or rather exposed for the sky, and tried to bring back the trees and grass using curves or levels; failing that, an obvious situation for a graduated ND filter. Thatweird sky loses you a couple of points, i fear.
Nice camera work, would have been good for the deep DOF challenge as well. i like the contrast of the bark to the grass. however neither the tree trunks nor the scene they frame is ver interesting. I bet that tree in the center is lovely, if you could just cut down al the surrounding foliage the phot would be much stronger.
I find this boring to look at. The centered tree (if that is the subject) is uninteresting. The texture of the bark of the foreground trees are much more attention grabbing.