Wallpaper fancy

Wallpaper is one of those decorating trends that I have admired for a while now. Unfortunately, unlike paint though, if you get the colour/s wrong, it's costly to fix. Having said that, Viv from ish and chi has blogged many times about the use (and application) of wallpaper in her home and I'm feeling more confident.
I blogged here last year about one particular design that I like and I have since sourced a UK supplier for this wallpaper. What do you think? Suitable for a girly nursery? Plus a cute cushion like this one, and a baby blanket like this.