Help! Looking for backsplash (for behind the faucet) suggestions. Our vanity consist of four sections (all different heights): 90" high linen cabinet, 41" high vanity (tall husband), 48" high middle cabinet and 34 3/4" high vanity (short wife). I just can't figure out what to do that won't look off. We do not want a big obtrusive cabinet in the middle of the vanities...we'd like to keep an open of a look as we can. Thank you for understanding!

Do I have a backsplash that goes up to the bottom of the middle cabinet...7" on one side and 13 1/4 on the other?

Do I do the standard 3"-4" on each sink vanity, but then they won't align horizontally?

Do I make the mirror on the shorter side longer so that the distance between the vanity top/backsplash and mirror is the same and the top of the mirrors would still align?

I'd love to see pictures, if they exist.