Question: What artist painted the sets of watercolors that she made exploring a monochromatic palette with designs that were non-representational of specific objects, and was best known for her paintings of enlarged flowers? 
Sentence (from "Georgia O'Keeffe"): Georgia Totto O'Keeffe (November 15, 1887 – March 6, 1986) was an American artist.
Relevant evidence: Yes