Kjell Lindgren found some graphic art in these burnt-sienna dunes:
M.C. Escher, the 20th-century Dutch illustrator, was known for his quirky, “impossible” drawings, like this one. “A meticulously crafted 3D animation revealing a universe of wonderful things based on imagery in M.C. Escher’s art” was featured by Kasia here.
Bonus sand dunes from Kjell here.
(See all Orbital Views here)