Why don’t you take it all the way up the wall?

Of your two options I like side splash to the floor.

I like the backsplash only option best. Is using the countertop material as backsplash not something you want? I think the pattern of your backsplash tile clashes with the pattern of your marble pattern quartz(?).

I had planned to do a quartz backsplash, but it would have been too thick. I suppose I could pick different backsplash material, but I already have this tile and I really like it.

Then I'd consider a solid tile.

I found several options that could work. Here's a mock-up of one of the possibilities:

Have you thought about possibly tiling the whole wall? It might look something like our designs included here:

Evergreen Design and Decor · More Info

Castle Pines Village · More Info

I like it without a side splash based on the layout. Before you do anything, take one of your faucet handles and put it in the hole to be sure of how much space you have to even put a backsplash . It needs to be easy to clean back there.

Good luck - looks great so far!!

Thanks for the latest replies Margarita and Debbi. I only saw them today.

Debbi, There's enough space for a tile backsplash as long as the tile isn't too thick. I'm working with someone at a tile store now and he suggested arabesque tile for the backsplash, which will go with the shape of the mirrors. He also found a marble-look porcelain tile that matches the countertop and will go in the shower.

Margarita, While I would like to take the tile up the wall, there are a couple of issues:

1. Cost.

2. Funny shape of wall behind the vanity.