<prompt> Translate the following text to EnglishKatika picha ya Trinity of the Annunciation iliyochorwa na Simone Martini, Maria anaonekana akimkimbia malaika mkuu Gabrieli, na picha hiyo inaonyesha jinsi alivyochora kwa urembo na ushairi wa shule ya Siena.  <response>: Some 30 years later, the Annunciation triptych of Simone Martini, with Mary shying away from archangel Gabriel, has the characteristic elegance and poetry of his Siena school. 