Details: The large rectangular mirror spans almost the width of the vanity. Providing an nice focal point if the room. It also makes the room appear large with the oversized mirror. I personally have this mirror in my powder bath and love it!
The chunky jute rug will add texture as well has the weaves waste basket. Two matted art pieces above the back of the toilet help balance the wall with the mirror. On the vanity place a vase with some greenery stems to add life as well as some nice scented soap for guest. Key is keeping a powder bath simple and clean for guest.