What else can I say or feel other than Wow! This is Carrara Venato as White as Calacatta for a fraction of the cost, add Brass Fixtures and you have a Five Star penthouse Bathroom (probably better).
Here the customer has used the following products and at 2018 this was the price:
9×18″ Subway Tile Honed on the wall $10.95 a Square Foot
1×3″ Herringbone Honed on the shower pan floor (creates better grip): $12.95 a Square Foot.
4×12″ Subway Tile directly after the Subway Tile: $8.50 a Square Foot.
Bullnose down the edge near the door to finish the gap with a beveled edge $9.95 Each
Very simple just four SKU’s. If I was a betting man, on the other side is most likely a double niche and the background of the niche is 1×3″ Herringbone to co-ordinate nicely. This product was not just laid box to box, some tiles were removed, tiles were dry laid before installing. The perfect look was planned just like on HGTV, it did not just happen this was a professional installation.
From another angle.