I am always surprized when I tour houses with boring Powder Rooms. It is the one room that, even if you are selling, does not have to be neutral. (My motto: "A powder room is not going to make or break the sale of a house".)
It is the one room you can take a risk. Go for it! Glam it up! Show some personality!
Interesting mirrors are not expensive. A small chandelier adds drama. Bold wallpaper makes a splash in a small powder room. I use large, colorful art in power rooms when I stage.
Here's an all white power room. Exactly as I found it when I toured the house.
The only color was a box of Kleenex.
For only a very few dollars, a few accesories can be purchased that will help amp up a small space.
I added a colorful print (Tuesday Morning) above the towel bar. The green and orange the powels (Target) pick up the colors in canvas and add a little pizzaz to this ho-hum powder room. Citrus colors are always a hit in the summer. This is literally a 2 minute fix.
Don't be drab in your powder room. Be fab! Have a little fun in this small space.