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.
White and blue wallpaper, Zoffany Spark Wallpaper, lined with a frameless mirror illuminated by polished nickel sconces fitted with white pleated shades over a white pedestal sink and a Puckr Vase atop a blue penny tiled floor finished with white grout.
Eddie Ross: Amazing vignette with Antonina Vella Dolce Vita Wallpaper in Navy Blue, vintage double .Imperial Trellis paper by Schumacher is similar. This would be a great look in your bath with the blue and white tile