It's an old standby...warm cozy refuges contrasted against cold, hard edged places. You've got a pretty good aesthetic balance already. Just for fun, don't try to correct it but take it even further. A lot of color theory books throw a lot of words at this kind of situation. But all you need to know is, unusual color sells, and so does cozy when the weather outside is frightful, but inside it's so delightful. Good photo, it made me look!