Examining the full image though, I do see some kind of steam maybe or water spray in the "sand dune" at centre left. There is definitely something going on there which is hidden by a 'sand dune" coloured smudge.
Converting this to black and white and stretching it makes the area below the mountains (centre and slightly right) look as if there is a city or some other civilisation area there. Also maybe on the extreme left on the plain,