It looks very nice, better than I could ever do.
I do think you did a pretty well job at trying to emulate brush strokes.
One thing that stuck out to me however, was the ground. Nearer the trees in the back, the ground seems to change to a darker green color, much like used on the trees. This gives it the impression that the trees are reflecting their images onto the ground, and makes the ground look 'glassy'. I don't really think the ground should be getting much darker as it's far away from the mountains and the trees seem too few and skinny to be casting any kind of noticeable shadow there.