Leonardo da Vinci utilized several innovative artistic techniques in creating the famous painting, Mona Lisa. Some of these techniques include sfumato, which is a method of blending colors and tones to create a soft, hazy effect, particularly seen in the transitions of light and shadow on the figure's face. Additionally, da Vinci employed chiaroscuro, a technique involving the use of strong contrasts between light and dark to create a sense of volume and depth. He also used a detailed landscape background known as aerial perspective to give the painting a sense of distance and atmosphere. Leonardo da Vinci's meticulous attention to detail and mastery of these techniques contributed to the timeless allure and enigmatic charm of the Mona Lisa.