Photo-montage
David Scott (Majkman)
Artist's Pxleyes.com profile http://www.pxleyes.com/profile/Majkman/.
Waterfall Terraces of Escher's Crater
The image was found at http://www.pxleyes.com/photoshop-picture/509b3ea0e1612/high-resolution/Waterfall-Terraces-of-Escher-s-Crater.html.