Sorry for the clunky title. We plan to have the shower tiled in 4x8” glossy white subway tiles with charcoal grey grout. The floor will be the 8.5” charcoal grey hexagon also with grey grout. I want to do an interesting mosaic in the niche, but am unsure of where to go with it.

I originally saw a white 1x3 herringbone that I thought would be interesting but subtle, but it was a cool white whereas the subway tile and tub are a warm white. I then found the stone herringbone in the first pic, but if the subway tile is glossy with that be a weird combo? My husband found a glossy grey herringbone, but I don’t love that either for some reason. A colorful mosaic would be fun, but we’re trying to keep the tile fairly neutral since it’s expensive to change. Don’t yell at me though, we’re planning to do a bold, colorful wallpaper on the walls!