only looking a the inside of the archway-not the outside casing/trim. choice 2 for how the panels are done on the walls of the interior of archway. Need to choose an appliqué for the center of the design. No light fixture but the keystone "track" there.
Baroque plaster ceiling in entrance hall Althea Dundas-Bekker Scottish country house by architect William Adam. It took German craftman Josef Enzer six years to complete the plastering. Image from The Scottish Country House by James Knox.