We have a new, very small, beach house. We've just started decorating and I'd like to put a large mirror on the long wall behind the sectional sofa to make the place look a little larger. Do I center the mirror over the sofa or in the center of the wall? The wall is 10'2" wide and the section of the sofa below is about 8'. I'm planning on putting an end table next to the sofa. I feel it should be centered on the wall but wonder if that'll look funky.