Hi- I am at a loss on what to do with my master bath walls. I am installing chevron tile on the entire floor (including in the shower) and white marble (porcelain) in the shower. Pics below. I have grey countertops on my vanity and there is currently bead board on the side walls. I am trying to decide whether to put tile on the walls to replace the bead board and also considering it behind the vanity mirrors (currently no backsplash exists).