Have you ever thought of adding a backsplash to your bathroom sink? Backsplashes help to protect the wall from water damage, all of the different materials and colors that backsplash comes in these days this can create a beautiful feature and transform the feel of your washroom.
You can either extend the backsplash over an entire wall or create a linear column directly behind the sink and mirrored area. Here is a perfect chance for you to incorporate color into your washroom. Perhaps choosing the same type of tiles used throughout just changing the color from white for example to a blue like below with a contrasting unexpected colored grout.
A few more photos of backsplashes …