Georgia O'Keeffe was an American artist known for her large-scale paintings of flowers, New York skyscrapers, and landscapes of the American Southwest. O'Keeffe's unique style combined abstraction and representation, creating a sense of intimacy and emotional depth in her works. Her paintings often featured close-up views of flowers, emphasizing their sensual and organic qualities. O'Keeffe's art challenged traditional gender roles and established her as one of the most important American artists of the 20th century.