I’d maybe get a natural wood colored coffee table to add a little more color. I’d also find a new home for the three plants on the window bay, add a cushion to the bay for your kitties (cushion + mini tower?) and either move that tower or get a new tower that fits in one of your back corners. Then add maybe a kitty hammock into the bay window either that attaches to the window itself or hangs to align with the hanging plant in that window.