Paint the wall a solid color
Add wallpaper or peel-and-stick decals
Hang framed art or photographs
Create a gallery wall
Install floating shelves
Use mirrors to reflect light
Mount wall sconces
Hang tapestries or fabric panels
Add wall-mounted plants or planters
Display clocks or decorative plates
Use wall molding or trim
Apply wood panels or shiplap
Hang a large statement piece
Arrange wall hooks or organizers
Use removable wall stickers
Create a mural or stencil design