thanks for all the help everyone

the using boxes works to get the view.
however, I want to place shower heads, lights, etc in the recessed box and don't see any way to that with the boxes, they conceal items set on the walls or ceiling where the boxes are placed

if there is some wall to create the box with walls, that would work for placing things. or if there is some other item/furniture that items can be mounted on or in?