As an artist, Muller has spent the past year and a half delving more deeply: the needs to break new ground and find a new visual language led her to experiment with different media, while maintaining the commonality of use of the self-portrait. The outcome of this exploration is twenty small paintings and a series of short films, with trauma and healing as underlying theme.
Muller's first major solo exhibition at the Drents Museum closed in September 2021. The following month an exhibition on the work and life of Frida Kahlo, Viva la Frida, opened. During that exhibition, Muller spent a short period working as artist in residence at Studio DM, the museum's residency programme. Muller visited the exhibition about the artist almost daily. These encounters with Kahlo's work were an important influence in the creative process that followed.