It's too much pattern. Change the counter or the backsplash to plain.

I think it's all nice and love the cut of mosaic backsplash, but I agree with angela, I'd change it to a solid color that picks up the veins of the countertop.

try a white thassos marble for the arabesque shape or even a carrara marble. you have what looks like a calacatta marble. The latter is a bit warmer toned and your cabs are in the cooler range.

Although, I don't mind the choices you have. I would wait until the cabs/countertop are in before finalizing my choice. The countertop looks a lot different when in compared to your tiny sample. just wait.

we are unable to post pics because this site has been down for a few days, but I will show you some examples when I'm able.

I totally agree with Beth. Love the counter top, cabs and floor. Wait on the splash. So many splashes would work with your neutrals.