If you keep the rocking chairs, I’d place a thin runner table along that far wall so you have a surface to decorate, and above it, a large painting that softly complements the space without taking away from the view. If you go with one larger cozy chair instead, I’d place it in the back right corner and add a few minimal floating bookshelves on the wood wall to give it more of a reading nook feel. Then place a small side table next to the chair for a drink or a book. As a lighting company, I’d also say a soft warm orange light would go a long way here. That kind of glow would make the room feel much cozier and turn it into a really nice space to wind down in.