Girl With Cherries (detail); attributed to Giovanni Ambrogio de Predis (circa 1455-after 1508), but possibly by Giovanni Antonio Boltraffio (1467–1516)

oil on wood, c. 1491-5

"Girl with Cherries […] shows an artist grappling with Leonardo’s ideas and technique […] The vibrant sense of life in her curls is a testament to Leonardo’s love of the movement of hair, which he saw as similar to water currents and other paradigms of motion and which he studied in many drawings." [source]