Portraits for NHS Heroes Harriet Matthews (portraits for NHS heroes) 2020. Oil on canvas. 20x16", 51x41cmHarriet Matthews (portraits for NHS heroes) 2020. Pencil on paper. 12"x16", 30x41cmDr Tim (portraits for NHS heroes) 2020. Pencil on paper. 12"x16", 30x41cmDr Sarah (portraits for NHS heroes) 2020. Oil on canvas. 20x16", 51x41cmVicki (portraits for NHS heroes) 2020. Oil on canvas. 20x16", 51x41cmVicki (portraits for NHS heroes) 2020. Pencil on paper. 12"x16", 30x41cm