Diffcult to know exactly what you are aiming for or asking about.

the question is where would you use the feature terracotta tiles?

If it is a small ensuite then there is enough interest in both of your tiles that you don't need a feature wall. Keep it clean and simple. Terracotta to the floor, white tile to the walls. You don't need a feature wall in a small ensuite. When in doubt, leave it out.

Best of luck,

Dr Retro of Dr Retro House Calls and Dr Retro Virtual Visits.

Hey Ali, what flooring are you using? And are your tiles going the full wall height or will you be painting some of the room? Rustic to me involves unpainted timber (of course that’s not the only rustic style) but your vanity material and perhaps bath style will affect your decision. This might seem like a dumb idea, but can you create a life size rendition of the terracotta tiles in the pattern you want? Officeworks will print A3 copies at a very reasonable price. Get a few and place around the room, with some packing boxes to stand in for the fixtures and some, large as you can get, samples of the other surface materials (or as close as possible facsimiles). I’ve found the people on Houzz to be great, but sometimes you’ve really gotta be there and, in the end, style is personal. Often there’s not a right or wrong but simply your preference, mine or the guy down the street. And don’t forget Houzz’s search option. All those photos to give you a bit of help finding what appeals to you and what leaves you cold - always a good starting point