I woud like to hang a rectangular mirror opposite a window in the diningroom. However, if I do this it will not be centered on the wall because of a doorway. If I center the mirror on the existing wall space (minus the doorway) the mirror will be to the left of the window opposite as well as the diner sitting in front of the window. Which arrangement is best? If I hang it directly opposite the window, I will have a lot of empty space to the left of the mirror.