I am open about the size and the location of the wall I might use for a mural. But my work is depending on the dimensions and the historical background of the wall. The surface for my painting might be a facade, a part of a building or an indoor situation. The wall does not nessecarily have to be plain and straight (there might be edges, windows, or pipes) but of course the wall has to be ready and stable for a painting. All parts have to be reachable by ladders, schaffolding, scissor lift e. g.