Schoolchildren play chase in a playground in Amsterdam (2013); from this bird’s-eye view they look like a shadow theatre on the picture of Amsterdam based photographer Katrin Korfmann, who works in various media.

http://www.katrinkorfmann.com/-enHomo Ludens
http://www.theguardian.com/artanddesign/gallery/2013/feb/01/photography-big-picture-katrin-korfmann#/?picture=403207496&index=0