Study for a Lunette : the Annunciation with Angels

A drawing of the scene of annunciation with Virgin Mary on the right and the angel Gabriel on the left, in a semi-circle canvas, designed for a lunette in a church. The composition is fluidly drawn, with elongated figures topped by small heads and wrapped in complex floating drapery. Standing between the angel Gabriel and Virgin Mary is a fountain [?], and there are several quickly drawn figures behind the angel in a posture of being alarmed. There are several angels hovering above the figures, with one playing a lute. The divine light from the sky represented by white lead illuminates Mary and Gabriel, heightening their figures with white.