I think a very tall, full plant would look great there, as well as provide a nice division between the stair railings and corner. I think more wood there (furniture) might look pretty busy.

Do you have to keep that console? I think a taller, wider one would really balance that wall nicely.

Take a picture from further back. We need to see the entire room. I do agree the console should be wider. The wall paneling is art itself. Get rid of the ladder

I agree. Existing console is too small; if you had an adequately sized console, you don’t need anything else. No ladder.

console is way too small and tv too low. (remove the picture on the wall. that's too high!)

you need a longer and taller console. remove the ladder and do a plant

See? much better in proportion.

(not necessarily this console, I just picked it for the size and sleek look.)

if you want the lower console, make it longer and mount the tv to the wall. like this

this black one w/glass doors would look beautiful against that wood wall

I'm assuming you're going to keep the console for now.

I would move it towards the window with nothing between it and the window. Right now it is just off-center and not looking balanced. Then clear away everything to the right of the TV. The small picture to the left of the window is squashed in and should be moved elsewhere too. No ladder. No plant on the ledge above the window. Keep the focus of the room low.

It would be helpful to have a picture of that wall from wider back, because I don't think your large picture should be on that upper wall space. IMO that upper area should be blank and the art work elsewhere, maybe to the left of the TV with a small cabinet under it.

I'd also move the small pictures that are on the shelf below the TV. Arrange them on a picture ledge (Ikea has them) in a hallway at eye level. They can't really be seen where they are, and they are too small to look good. Buy 4 wide wood or wicker baskets and put them on those shelves. Empty or with useful stuff in them.

I would do a gallery wall around the TV but only on the wood portion of the wall. Nothing above the wood.