[10] In 2018, in recognition of her work in arts and culture and as a campaigner for race equality, she was invited to become part of the UNESCO Coalition of Artists for the General History of Africa.
[11] She founded the Roots, Culture and Identity arts collective, which showcases the art of predominantly young black, Asian and migrant artists,[11] and she is the author of the 2017 book Striving for Equality, Freedom and Justice: Embracing Roots, Culture and Identity: A Collection of Poetry, published by Hansib.
[12] Holbourne has contributed work to anthologies including New Daughters of Africa (2019), edited by Margaret Busby,[13][14] and Here We Stand, Women Changing the World.
[19] She was curator of the Roots, Culture, Identity virtual art exhibition hosted by the TUC Race Relations Committee in 2021.
[20] Holbourne has been the organiser of a long-running petition calling on the Home Office to end "mass deportations" to Jamaica.