Egg tempera and aluminium foil? Okay. Wait, what? Yes.
This technique Maud learned during her exchange in Norway. Using an egg tempera of egg yolk and water, mixed with pigments, she painted abstract images. Egg yolk keeps hardening, it doens’t go bad. It also has the quality that it oxidises as soon as it touches any kind of metal. This results in a drawing that looks like it has been made with graphite. Only, it wasn’t. In these drawings, she used aluminium foil to create an image on top of the abstract base. After this, an other layer of tempera was added, less diluted.