Wallpaper newbie. I have a dining room with a picture rail. Inspo picture attached from Wayfair. I’d like wallpaper above the rail, rather than below. The length of this area from rail to ceiling (coffered ceiling) is 31 inches. I was targeting a William Morris wallpaper, particularly Pimpernel. A single Pimpernel pattern is 18 inches. That means that I would basically only have a single pattern above this rail, obviously with a little bit above and below the central pattern. Is this ok? Trying to match this horizontally may mean I’m having to waste paper too?