Better photo of the actual tile I’m using

Norwood, thanks for weighing in! Although not perfect, this design aesthetic allows me to do something unusual and still be within my budget.

Doing the entire shower in hex is out of my budget and I’d rather do something than have a very boring shower. I think the inspiration photos look great and I think I can get close to that.

Then do it , I dont think accent walls do anything for most showers and in your shower design with so little glass for walls seems to be not very effective .IMO accent walls look best in showers that are almost all glass

Sounds like you're excited for this accent wall and going for it either way. If that's the case then I would mimic your inspiration pic and have the back middle wall the accent wall.

I think that the floor and back narrower wall would look amazing in the grey hex tile - go for it!

Back wall for hex accent - definitely! And that hex you picked is yummy. You're doing the subway stacked like your inspiration? It's going to look great.

Don’t use dark tile in a shower. The space will seem smaller and it will be difficult to keep it free of soap residue.

If you use the dark hex on the back wall it will make your shower appear deeper, which could in turn make the bathroom itself seem bigger. As long as you keep everything else light it shouldn't make the space feel more congested.

The back wall, facing us in the picture opposite the shower entrance. I suggest only the wall though, do a white small hex or penny tile on the floor.

A dark wall will feel closer to you not farther away. I just renovated a bathroom and changed the brown tile in the shower to white and the whole room feels larger and cleaner.

Thanks for all the input! I am still on the fence about using 12x24 vertical stack matte tile vs vertical stack 4.25x10 matte white tile or 4x12 glossy white subway tiles. Using the same color and finish on the floor in a 5x5 square Also, still considering doing the same hex on the dry floor. Thoughts?