What a cool, interesting place. The rocky parts have a great warm color which contrasts well with the cool color of the sky. On my monitor the sky has a slightly un-natural purple cast in the dark clouds. Your composition is very nice.
7- Nice. Criticism; if possible, incorporating more 'green' at the fore to offset the 'blue top' of the frame, may have made this better in my opinion. Seems a good focal point/capture here with the hills/rocks, with the seemingly (but obviously not) 'out of place' snow capped mountains in the background.