Peter,
Cool location and the composition is very strong. Good use of the rule of thirds, interesting foreground, good placement of the horizon. The light is a little flat and makes the foreground and the background blend together a little too much. Some local contrast enhancement might help (USM filter at 20%, Radius 50, threshold 0).
Cheers,
David
I might also liked to have seen a bit more FG of the slanted rocks which by the way as a diagonal element work well inthe image. I like the placement of the tree on the right as it adds visual interest and is balanced with a dark bush on the left.