This is a Tromp l'oiel (fool-the-eye) library "Reading Room" themed bathroom of separately cut out "books" "arranged"on faux shelves, of real antiqued wood molding. The toilet was blended by making it part of a library table. The toilet tank became a stack of books under the table. (Yes, wallpaper can be glued to porcelain!) The larger window scene was hand painted and the removable, stained glass "window" was hung over a painted sky-with-leaves which is lit from behind by an light-sensitive electric window candle.
Painting in tops and sides of the books cut out of wallpaper completed the illusion.
Photo credits: Neffworks.com