Damn this is nice. I think though that shooting this a little more from the left side to have the dune line closer to the right corner and have it lead right up to the mountain and counteract the clouds would really complete this composition. Not a bad looking scene though.
I had the storm in line with the dune, but by the time the color started it has moved farther to the right. I do have a photo of the compo you mentioned but decided on this one. It has a better contrast on the dune crest I think. Moving left took away from the shaded part.. I'll more than likely post some of the others later down the road. Thanks Pete!