On Georgia O'Keeffe
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The trend, which emerged from the painting of Monet and Cezanne and Van Gogh, was toward a more painterly style: brushstrokes and textures were visible on the canvas, obscuring somewhat the scene depicted.
Another core theme of Modernism was abstraction, epitomized by the cubist fracturing of the image, or Mondrian’s simple lines and rectangles.
Amid all this, Georgia O’Keeffe painted clear landscapes, in a style transparent rather than painterly.
Clement Greenberg thought her work had “little inherent value”: