Very simple, but makes a statement without overwhelming.  Idea for the plant ledge.   We could stain the box any color...and put in fake grass.  Super easy!

Residence, Interior Stairs Idea From Top View And Hall Way Loft In Bansko By Fimera Design Studio Natural Color Palette Shaping Spacious .

Kitchen cabinets                                                                                                                                                                                 More

Tuscany accessories - interpreted *** for recessed LR arch: consider a lg piece of mirrored ironwork maybe with 3 small staggered ledges for objects, greenery, etc- use for plant shelves or niches