I like it. though would personally go lighter with the larger format gray

Yawn. It's all far too bland and devoid of personality.

In your top two pics, is the tile on the left textured marble tile? It looks very much like a tile called Raked Sand from Artistic Tile that I had picked out and ordered for a fireplace surround. My sample was a bit lighter than yours, and this is a picture from their site and tear sheet:

Please be sure to check the variation level of the tile (V1 - V4, 4 being highest) and make sure you're happy with that level of variation. Unfortunately the tile I received looked like this:

I was able to return it but lost nearly $1K on shipping. I wrote a bit about tile variation and my cautionary tale here (link.) I just don't want you to be disappointed.