The image shows a vaulted ceiling composed of white stone bricks, with a pattern of intersecting arches that meet in the center.  There are eight stone ornaments placed at the intersections of the arches.  The central ornament appears to have the letters IHS carved into it.  The other ornaments are a variety of carvings, including leaves, flowers, and other designs.  The image gives a sense of the grandeur and intricate detail of a church ceiling.