Flowers and flames. And colour. Colour as colour, not as volume, or light,—only as colour. The last mad throb of red just as it turns green, the ultimate shriek of orange calling upon all the blues of heaven for relief or for support; these Georgia O’Keeffe is able to use. In her canvases each colour almost regains the fun it muse have felt within itself, on forming the first rain-bow.
— Charles Demuth on Georgia O’Keeffe, 1927.