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 .
Both Leonardo 's Annunciation and Adoration of the Magi show off his flair for fine detail and powers of observation .