An artist, calligrapher, and bookbinder, Tosten's works on paper and installations explore social constructs, binary thinking, and the nature of existence. Referencing her Creole-Jamaican heritage and identity as a Black woman with European and Indigenous roots, she uses letterforms, paper, and sewing to recontextualise her Catholic upbringing and her place in history — drawing equally from Louisiana Voodoo, spiritual practice, and the material culture of the archive.