Hi Susannah! One idea is to paint the interior of the closet black to camouflage your television. Then hang photography in black frames around the television. I'm not sure how slim your TV is, but if it can be mounted then hang it on the wall. It'll transform the empty closet into a salon-style gallery wall.
If not, replace your TV stand with a table that's a little higher to make it eye-level. Regardless, the TV should be centered in front of the closet and raised to provide symmetry.