add the same circular trim molding profile already used on the walls to the perimeter of the ceiling continue the identical trim continuously along the ceiling edge where the walls meet the ceiling wrapping the entire room match the profile scale spacing and finish exactly to the existing wall trim do not add crown molding or any new molding style use the exact same circular trim detail preserve all existing walls ceiling lattice furniture lighting colors and room geometry this is an extension of the existing trim not a redesign of the room
