Custom Recessed Niches

I have been working on some new ceramic shapes to picture frame in my recessed niches. With the niche flange against the backer board my ceramic crown molding can be butted to the bottom to have a shelf in front of the recessed niche. I have then designed 2" columns and 1 1/2" fluted stock to cover the side flanges and a classic Greek design "roof' structure. There are three low voltage led lights that last 50,000 hrs and are replaceable.Hope you like. Above picture is with the columns (laying on the floor mockup). Fluted verticals in above photo.