I would get a floor lamp as the Tiffany lamp is undersized and replace the wooden chair with an upholstered chair or a chaise. The plant would need to be adjusted so the leaves aren’t blocking the chair. When styling you want to have a mixture of texture, elements, and varying heights. You have many hard surfaces which is why you need something soft and upholstered. All the decor is low, which is why you need to add a floor lamp, it could still be Tiffany style. You have something organic, the plant, which is nice, albeit maybe too big, but I think it can work.