Something like 'ragged dunes'? This is an awesome photo; you have captured the mood of a beautiful wind-blown landscape and technically it is very good. Personally I would crop it such that the small tree on the left is gone and the large tree is to the left 1/3rd of the frame. This would put more emphasis on the shape of the foreground dune on the right. It would even be a fantastic photo if you cropped the tree vertically.

Imagem perfeita, uma pintura interessante, belas cores.
Perfect image, an interesting painting, beautiful colors.

The overall color reminds me of an old style sepia toned photo.

•*´¯`*•.¸..¥..¸.•*´¯`*•Spectacular!•*´¯`*•.¸..¥..¸.•*´¯`*•

Hello....I love the colours in this haunting picture....Well done....All the best to you..........................Mick.