i would replace the mirrors with a largish piece of art ( your choice) & ignore the expanse of wall above.

If you feel that the wall still feels bare you could add a lounge chair facing in, next to your TV console or add a taller live green plant/tree near the end of your console. Adding some color would look good.

build or buy a tall room divider.

... I personally would try moving your sofa to the edge of the carpet, facing the window and placing your under TV credenza on the solid floor side, facing the dining room. Place the table lamp on the credenza near the wall. Spin the dining table to width of the space?

Is this just off the kitchen? the mirrors aren't reflecting anything interesting, a large canvas may be more interesting and to add some color to the space.

Ignore the expanse above your head. There’s no need to decorate up there.

I like the idea of replacing the mirrors with one large piece of art, hung at viewing height of an average person.

It would be nice if you would add photos showing all of the walls in that area. I feel like there is a better layout for the room.

I think a longer media console would look better + lowering your TV a bit.

Your room needs larger art, more colorful art and a tree in a planter.

You posted this same dilemma in 2022 and I asked for pics of the entire room. However, you did not respond to it.