I liked the idea of doing the birch tree wallpaper in a half-bath. But it never occured to me to have branch (not necessarily this one) wallpaper on the ceiling. (Oh, and obviously, I'd have 'lantern sconces' on the wall, instead of a ceiling light.
Textured, fancy walls are so in right now—and watercolor walls are just continuing that trend. Check out these pretty rooms that style the watercolor wall mural really well, for inspiration on how to do it in your home.