Deploying her signature black and light, she continually explores the relationship between permanence and impermanence, silence and sound.
In December 2022, Marshall was a guest speaker at FutureSound with spacial audio brand L-Acoustics to speak about the power of sound and the voice.
[7] Marshall has worked for brands including the British Museum, Soho House,[3] the London Borough of Culture, Superblue and RE-TEXTURED (a multi-venue, multi-sensory festival).
She has also worked with music artists including Florence and The Machine, Anna Calvi, Goldfrapp, The xx, Róisín Murphy, Janet Jackson, MØ, Jessie Ware, Nina Kraviz[8] and Savages.
[4] On 2 January 2017 a post on Instagram from The xx's member Romy Madley-Croft shared Marshall's proposal and engagement.