Go to Home Depot, get a 4x4x8 pressure-treated lumber cut into squares, sand down edges, adhere with wood glue, paint black/red/grey, adhere together, put wall mounts on back, hang on wall above the tv
Bathroom - white subway tile, white vintage hex tile, dark grout, brass fixtures. https://www.subwaytileoutlet.com/products/White-Ceramic-Subway-Tile.html#.VfjgKhFViko
I like the wall color & the sectional & the floor & the addition of wicker + the curtains, rug & throw but I'd want colorful pillows & some accessories.