O'Keeffe's finest paintings date from the 1920s and 1930s, however, most critical attention has concentrated on works painted in the first decade of the 20th century, notably Roses and Arum Lilies of 1906, now in the Auckland Art Gallery, and The Model at Rest of the same year, in the Dunedin Public Art Gallery.
O'Keeffe's most renowned works originated in the 1920s and 1930s, but the majority of critical focus has been on pieces created during the first decade of the 20th century, particularly Roses and Arum Lilies of 1906, now housed at the Auckland Art Gallery, and The Model at Rest of the same year, displayed at the Dunedin Public Art Gallery.