How to decorate a blank wall in the living room?

I have a huge blank wall in my living room, and every time I walk into the room, it feels overwhelming with its emptiness. I've already considered paintings, posters, or decorative panels, but they all seem too ordinary. I want something special, something that will reflect my personality and give the room cozy and inspiring atmosphere. I often have guests over, and I want the interior to make impression without being too garish. I even tried hanging shelves, but the results weren't satisfying. Are there any interesting wall design ideas that go beyond the usual decor? I'd like the solution to be modern, stylish, and at the same time personal.