Strangely what caught my eyes were not the light and shade but, the lines and angles, and the background of random sand forms and tracks. Seems an interesting contrast between the orderliness of the foreground and the random chaos of the background. The simple black and white format brings out this better than color would; probably because color would make it too busy to visually comprehend so well. An excellent composition evidencing a fine photo eye recognizing an interesting natural perspective. Well seen. Thank you.
I would like to make an overall comment to compare this to your other post today, Evening Light. Evening Light has by its subject and coloration a inherent Wow affect. This photo here is far simpler and more mundane. However, I think it is more complimentary to your demonstrated skill. Evening Light by its nature draws interest. However, your keen photographic eye and talent makes this photo's subject matter outstanding. It seems a good example of where the photographer adds greatness to a capture whereas subject matter can instead simply carry a poor photographer to greatness. It is not the WOW affect that demonstrates photographic skill, genius, or greatness. It is what makes the simple, common, ordinary subject seen well that evidences photographic skill, understanding, and insight. Just a thought. Don't mean to start a war.
Bobwed - once again I thank you for your thoughts - I often find that "less is best" in photography whereby simple things such as this shot can create a strong photograph - a mundane subject turned into an interesting shot . The "evening light" shot by contrast is a winner not necessarilly by the photographers skill but more by natures display which is easily captured with modern cameras - In summary we are in agreement!