Showers
Wall slab, floor mosaic, niche and curb are four different surfaces that have to agree. Mosaics sit on sheet so the floor can drain and the walls can stay large format.
Bring this Ask to see the mosaic sheet under the floor light, not the wall light.
Surfaces for showers
Pearl blue A translucent pale blue that lifts under a light. Pool coping and shower walls are where it is usually going. 
Blue hexagon mosaic Swirled blue and white hexagons on sheet. Pool waterline, shower floor, or one feature panel. 
Ice onyx look A green-white with a faint core, like light held inside the tile. Wants a wall where a lamp can find it. See them standing, next to each other.
We are a showroom: the slabs are standing, whole, and can be moved around. Bring the measurements and we will work it out on the floor.