Hi everyone who has posted photo's thusfar
Excellent design and craftsmanship!
Here's one that's not crazy, but I almost was:
Shampoo shelf with matching grout lines

Shower pan with full tile diagonal rug insert (4x4's), 1 1/4" x 1 1/4" border, modified 4 x 4 perimeter

Typical matched miter used to change direction at toilet area (solve layout issue with room configuration (40 / 50 degree vs. straight 45 degree)

Complete shower - 2x10 brick pattern, chairrail, 4x4's at diagonal with clipped corners and 5/8 x 5/8" four cluster keys

Complete floor with marble base (bullnosed & polished on site - simple procedure / soft stone)

Close up of border notched / polished in place for glass door, exposed end pieces completed with epoxied return miters