Added some depth cues to the CIVA panorama. It really helps to create a sense of depth and scale.
I segmented the image boulder for boulder looking for overlapping sillhouettes. That created the initial sorting.
Then I used the shadows and the scale of the surface grain to estimate distance.
I coloured the surface redish to match with some information on colour that I have seen drifting around on the web..
I added the contrast loss that an atmosphere/fog would give based on the distance estimates.