It looks like the TV is trying to side behind the wooden cladding. It need something as substantial as the cladding on the opposite side for balance.

Install floating shelves in the same timber on the left of tv. It need’s balance.

It lakes texture and balancing height. Go onto Pinterest. These are a few examples from a search for tv wall.

Gorgeous, Kate .

I think the tv is placed a little to close to the cladding and that throws it a little off balance, you could as others suggested add shelving or a larger lamp on the corner of the unit or even fabulous wall lights to really give the wow factor