Take the following as truth: Leonardo's Annunciation (1472 1477) of a few years later already shows his characteristic gentle tone and feeling for precise detail, and the Adoration of the Magi, even as an underdrawing left unfinished by his departure for Milan (1481), reveals his revolutionary power of psychological observation.
Then the following statement: "Leonardo left for Milan in 1481 to seek out more challenging commission work." is true, false, or inconclusive?