The key to decoration is neutral tones with a few dark colors. For the walls choose a matte or flat wall paint. Pale golds and yellows work particularly well as does floral or check patterned wallpaper.
Compare colour options so you can get the right shade to blend in nicely with the surrounding items. You can go with something bold or something common as it is your room to do with what you wish. Make it something you enjoy and you can be proud of when you have guests at your home. The bathroom is a common place they will go while visiting you!
Either tiles or wooden floors can be used. Tiles should be a rustic colour and can be used to create elaborate mosaics. Wooden floors should be varnished to match the furniture. Decorating may see a stenciled motif used as a border and the technique of rubbing paint on the walls with a sponge gives the room that worn natural look.