Great atmosphere, indeed like something not-so-pleasant is going to happen. I like the harshnes, the darknesses and the rock. And the sky. Agree with the blue, get rid of it! And there's an area on the right where the tilt/shear or redirect (whatever) gives you a horizontal outcrop with 'erosion' that doesn't look very natural, as most gullies will be etched out topdown, IMHO. I would also like to see a small bunch of trees somewhere, just 10 dark and frightened trees huddled close together, as if waiting for doom on water's edge.
