Not that I have an empty closet, but i do like this."Closet Office" - Turn your un-used closet/reading nook into an office space. Maximize the little space with lots of shelving and storage *LIKE CORNER DESK/nook & shelving for office corner
I like the upper mantel idea. The dark floor, dark wooden coffee table top and dark stone in the fireplace pull this room together. White walls, white slanted beam ceiling and doors going to the outside make this a great looking room.