You need to break up this plain desert of wall. Think about breaking it up horizontally and vertically. You could either build or purchase a long low cabinet and then place two shelves the same length above the cabinet to create a floating cabinet - with your TV lined up just below the top shelf
This would enable you to add two large pictures either side and the width of the cabinets and shelves coupled with the pictures would break up the mass of space.

OR

you could invest in two tall cabinets higher than your TV - and instead work on the verticals. These would frame your TV. I would then take your masks and hang them vertically staggered near the window. And a large print or painting to the other side. You would have to remove that low table below because it makes your TV hang in the air (even with cabinets) so you need taller dresser or cabinet.

I would invest in a really nice console and then place a piece or two of art down the wall closer to the door.

I like Dytecture's idea - that's a great way to create new storage space but will also turn the wall into a focal point.

How about this!

Specialist I like that ,while sitting the TV is at eye level and the wall is complete and plenty of storage too .

Bigger TV...problem solved. :-)

Thanks guys, i appreciate your suggestions..more ideas are welcomed.