First shot....great lines and use of frame space. The contrasting blues and tans are echo of the cold nights and hot days. Very balanced shot. Only notable issue is the grain (parden the pun) in the sand on the blue side of the first dune.....maybe some selective noise reduction?

2nd shot...mixed feelings on this shot. WIshing the rocks were bathed with warm light...but of course...you deal with what is given to you. Given what you had...this is first rate.

3rd shot ....Nice set of lines....zig zagging across the screen drawing your eyes across the entire composition. Love it.

Roman