Fra Angelico's "Annunciation" at San Marco in Florence. I saw it in person & no photos do it justice.
The Annunciation - Fra Angelico - 1440
Archangel Gabriel details in the Annunciation that Fra Angelico painted. The picture expresses the feeling of veneration to the Virgin and its lighting indicates he is a messenger of God.
Fra Angelico. The Mocking of Christ. 1440-1441. Wall fresco. Convento di San Marco, Florence.
Fra Angelico, 1441. Museo de san Marcos de Florencia. This is another painting by Fra Angellico with religious connotation.
The Last Judgement (Left Side) by Fra Angelico
Fra Angelico - The Last Judgement (Winged Altar). Detail. 1450
fra angelico/san marco monastery, florence
Fra Angelico, Google Image Result for http://www.christusrex.org/www2/art/images/beato23.jpg
Fra Angelico (Italian1387-1455) Presentation of Jesus in the Temple.