I really think that, if you have your heart set on accent tile in that color, you should save up a bit more and change the floor. Otherwise, IMO, it’s just not going to work. Someone may suggest painting the tile floor, and that’s a possibility, although eventually, I’m sure you’d want the real thing. Anyway, have you given any thought to working with the current floor and finding a scallop shaped tile that coordinates with the floor? Maybe there’s something out there that’s going to look just as pleasing to you.

Adding some foliage with and artificial green wall has no upkeep or maintenance and will create a luxurious feel, also you will not have the mess or clean up from putting in tile.upscapers

Yes, its tricky for us to tell exactly the right shade of brown/beige that would work in your bathroom, but you’ve got the right idea with what you’ve posted.

You have to 100% work with that floor (and shower!). The backsplash ideas you posted as possibly working only work with a solid white quartz counter - not anything with veining. There are only so many to choose from so best to go to your local fabricator and find the quartz you like and either bring backsplash tiles with you or select those after counters are in so the whites coordinate. I can’t stress this enough. Good luck!

Not to mention the white of the cabinet which should be coordinated with the counter. Lots of whites out there and subtle mismatches can be very disappointing.