Madonna and Child with Saints Symeon (?) and George
Silver over painted board
South apse, Church of St. Symeon, Zadar, Croatia
To the right of the Virgin, St. George may be identified by the armor, the shield with a cross on a blank background, and the dragon's tail visible at his right foot. I am conjecturing St. Symeon as the saint on the left because this is his church.
Above the Virgin and Child are God the Father and the dove representing the Holy Spirit. The dove seems to be holding something like twigs or sticks in its feet.
More of the Virgin and Child
More of St. George
This image in full resolution
Photographed at the site by Richard Stracke, shared under Attribution-NonCommercial-ShareAlike license.