Can you post pictures of the other side of the room?

Just having furniture in the room will pull the ceiling down. The trick is going to be to balance the off-center fireplace. That curio needs to go someplace else (like maybe someone else's house; it's too contemporary for this space). The lamp is too small, and the bullseye/clock thingy is just wrong.

It's a gorgeous room. Let me see what I can do for this wall. I'll be back later with a rendering.

You can cheat that odd high window by using roman shades and hanging them all the same height.

I chose this art for the colors and the sensuous form to counter all the squares going on in the space. I like the earthy tones and blacks with a pop of red.