I have to think this would have been better when the sun was behind you rather than in front. It's obvious that you've had to combine multiple exposures. Nothing wrong with doing that, but don't leave halos. Even so, significant portions of the clouds are blown out and shadow areas are blocked up. The rocks (to me, the most interesting part of the photo) are still flat.

Lovely composition of a great landscape.

Superb.
(one cloud seems to make a sign :)