Felix & Matthias Gephart have been guests in Essen for Hafendampf several times; that is why I know about the brothers and their work. My Berlin friend has found a work of them at the former RAW property in Berlin-Friedrichshain in July and I have to confess that I again have changed the colour of my face to green! See for yourself!

Felix & Mathias Gephart; RAW Gelände