Saulnier Bath
If you look closely you can see the textured tile behind the vanity - the whole wall is done in this. They have something very similar to this at G&N in Exeter. Large scale textured tiles.... wall only. Then you could do a plain one to match on the floor. Also like the leggy vanity which is what you're likely to have.
I like the seamless look of the floor tile flowing right into the shower. The wall tile changes, but very subtly, giving the appearance of continuity.
Q