Sand dunes in a desert at sunset, Empty Quarter or Rub' al Khali, Arabian Peninsula, UAE

size: 489215
sha1: 8372bec4a56d457e7204503aaedb0a02949383a9
sha256: f4c96719feaa2977f83f23b386d1de74621d0daaf9fd5025c0fae8ffa0762a60

size: 490261
sha1: a2269a7f9d27a798234faa07e4c2b785074aa3ee
sha256: c405f6556d9c8c3efd3a412348e3418f2f2538e49ed5c024a51c46f7f9504b5c