Tip: If you don't belong to the lucky few who possess a
photographic memory, write down what you learnt while doing this exercise.
painting: Otto Dix: Corpse in Barbed
Wire: https://www.flickr.com/photos/botalex/25022281721
photo of Otto Dix: https://commons.wikimedia.org/wiki/File:Otto_Dix_on_April_12,_1957.jpg
Attribution: Bundesarchiv, Bild 183-45912-0002 / CC-BY-SA 3.0