Tile
White subway backsplash, wall to wall
A full subway tile run carried around the window and up behind the range, cut tight to every edge.
A backsplash is where sloppy tile work shows up fastest. The cuts around outlets, the return at the window jamb, the line where the tile meets the underside of the cabinets — that is the whole job.
This one runs the full counter run, up behind the range to the hood and around the window opening, with the subway pattern kept level and the joints lined up end to end.