The items on the wall are way too small. The piece the TV is sitting upon (it's hard to see it) looks like the TV should fall off the right side. If you can find something taller for it to sit on squarely it would help. Even an old dresser, painted. Then choose a pair of very large and colorful art to hang over it. The room also needs color & pattern, and painting the wall will not aid that issue. Find a larger, patterned,colorful rug that would sit between your sofas and extend to the TV area if you need it to do so. These can be really inexpensive..Lowes, Home Depot. Choose colors from the rug to add pillows to your sofa and you will have the look you want.