Beautiful shot. The quality of the light really makes this image for me, as the side/back-lighting sets off the two trees from the background and creates depth, while there's just enough indirect lighting on the cliff to bring out the contours. The contour lines connect the cliff and the trees to strengthen the composition. The color is understated but effective, no velvia-style saturation needed here; just foliage green in an otherwise monochromatic scene. This image is deceptively simple, but very effective. I can't think of anything to criticize. Well done!