I am redoing my bathroom with slab tile on the new walk in shower wall- so both in the shower and continuing to the corner. I am tiling the floor with slightly smaller version of same tile so it will look seamless. My question: on the opposite wall where the wall mounted sink and inset medicine cabinet will be I would like a decorative different tile backsplash- just between the sink and the cabinet. Don't want to do the whole wall, don't want a border above sink, want a square or rectangle shape. Would that look weird?