I’m after help today. I need opinions as to …

I’m after help today. I need opinions as to whether I need window dressings or not. I can either put a mirror behind this large hall window or use these beautiful drapes made by Tanya Harvey from Tanya’s little Curtains. A mirror behind the window is used by the Ritz hotel in London for effect, so it’s not my idea, but it does work. Shall I or shan’t I?