Final answer:
Georgia O'Keeffe utilized various techniques in her artwork, except for detailed realism. Her focus was on close-up perspective, abstraction, and bold color choices to capture the essence of her subjects, as seen in works like White Iris.
Step-by-step explanation:
Georgia O'Keeffe, in works such as White Iris, captured the essence of her subject utilizing several techniques, including abstraction, close-up perspective, detailed realism, and bold color choices. However, she did not employ detailed realism in her paintings. O'Keeffe's focus was on close-up perspectives and abstraction, using bold color choices to enhance the impact of her artwork. By painting flowers in large scale and with heightened detail, she aimed to encourage viewers to take the time to truly observe and appreciate the beauty of her subjects.