This looks like Escher's Relativity, but it has been manipulated. The girl doing the walkover does not belong. Her face also sticks out of a door window in the middle of the etching.
Aye, good spot @cybrguy, dozy me just went with the best res version I easily found. And I obviously did not spot those pretty ridiculous additions. Thanks dude.
Sheesh, I dunno, I can't even trus tinternet these days.
Note to self: Must try harder.