Wonderful layers of tonality and darkness, yet we are still able to see where to walk in the foreground because of the gentle light of the rising sun. Nice shapes that are not usually seen in most places except the southwest. Fine work.
No need to be gentle - the image is just beautiful. I like especially the faint traces of light in the foreground and the figgerent shades of dark - first you think you can't see anything, then you download the bigger version and there it is...
And as Randy wrote, the coloring of the layers is great.