 With three graphic works from 1947, Müller was one of just two artists from Halle (together with Willi Sitte) to be represented at the Gesamtdeutsche Graphik-Ausstellung (German Graphic Exhibition) organised by the German Cultural Council in Munich and held in the State Gallery and the Lenbach Gallery.One of the most prominent members of the jury was Charles Crodel, who had been a lecturer at the Academy of Fine Arts in Munich since 1952.In 1954, Müller moved with his family to the first new accommodation built in Halle since the end of the war, in Stalinallee 57b.