Georgia O'Keeffe
O'Keefe holds the world auction record for a painting by a woman (November 2014). Her Jimson Weed/White Flower No 1 sold for $44.4m (£28.8m) at the O'Keeffe Museum in Santa Fe, New Mexico. O'Keeffe's large-format depictions of flowers which she painted as if they had been seen in close-up.