There is contrast. On the top side the Germans who are without colour. They are mainly black and white. On the bottom there are the Jews who are surrounded by red symbolising their pain and their blood.
How do these visual techniques highlight major thematic elements of holocaust art and literature?
The German's are portrayed as colourless, cold and uncaring. The Jews are in rivers of their own blood. The red symbolises their pain. They are reaching out for help and originally no-one helps. All it would take is for one person to lend them a hand, to help them through their troubles and they would live a much better life. Just as it was in the holocaust.