The terrazzo didn't look dirty to me until I saw it next to the very dirty-looking wall tile. My brain comprehends it as all the same dirt.

I see beach sand colors and like the variation in the tile. Terrazzo is my favorite looking flooring and that's a good one for by the beach.

I think it looks fine. Like @aziline, I really am a fan of the terrazzo look. No, don't use tan grout. I'm not sure what would be best, but def not tan. Perhaps a light gray from the terrazzo tile.

Btw, I'm not an expert, but what is going on with your waterproofing (?), because I don't see any. I'll let the pros chime in, but what method are you using?

I love the Terrazzo because to me it looks like magnified sand. I guess the white tiles having the sandy looking smudges on them is what I was going for but finally seeing them go up on the wall I'm second guessing it for the second bathroom.

Layer of overlapping tar paper, cement scratch coat and everything coated with hydro-ban.

I like the while tile with the terrazzo on the floor. Like you say the floor is reminiscent of a sandy beach and it grounds the while. I do not care for what you are doing in the niche. The pattern and color clashes or is excessive with the tile pattern. I would either use the floor tile in the niche or maybe a smaller accent tile from the same line/same color as the wall tile, Or pick a warm gold or a gray from a chip the floor tile and use a plain glass tile in the niche. I'd use a grout close to the color of the wall tile to minimize the pattern while still showing texture.

Like the Terrazzo. Not loving the old/worn looking tile, but I tend to not like that look in general.

Here's a photoshop of what I was thinking about with the rear of the shampoo niche. My sample tiles below that are much brighter. They match with that butterscotch color. The textured tiles are weirdly opalescent and remind me of sea shell. Obviously the white tiles are not my smudgy ones.

I think your last mock up looks much better than the other one you did, I think the small tile must look prettier live than it does in the photos. There is still something 'off' to my eye with the shower tile being rectangles, with oval embellishment, the busy Terrazzo (which is gorgeous, but busy), then the small tile rectangles in a different color. It's just too many disparate things (to me). If you love it and are happy with it, go for it.

Agree - run the field tile into the niche, edge in Schluter, use the terrazzo for the (sloped) base.

I really love the terrazzo vibe here - well done on that. Don't overdo it with the 3rd tile.

Agree with the above and Janni. Use the terrazzo for the base and the field tile for the rest. The third tile doesn't work at all.

I'm glad most of you hate only my textured tile and not my primary. That's what I was most worried about. I can just do the niche in one terrazzo piece on the back. Again, this is just a picture I found that happens to be using my terrazzo. That is not my white tile.

I'm not a fan of any "decorative" niches. Imho, there is no reason to call out the niche (which just holds shampoo bottles and stuff), as a decor item. There are a couple designers (in these forums) who have said they don't even like niches because they are so prominent, and when filled with shampoo bottles, they surely don't look decorative.

Strips of decorative tile, contrasting borders, and decorative niches are not necessary and don't add anything. I personally love the terrazzo, as I said before, but I would put it on the floor and keep the field tiles consistent and relatively plain, for all of the rest.

It is a real splurge to make your shower "special" . Think about how much it costs to install a shower. I would choose something classic, classic, classic, and for me, that means simple.

Last question... I have the ability to exchange the white tile for the beige tile to do my other bathroom. Is the distressed white tile better than the beige for a beachy look?

I like the white tile better…and niches are incredibly functional!

I think the tile with the ovals looks better in white. I think the beige could work, but I don't think it goes well with the oval trim pieces. The beige looks rustic, the ovals and white tiles look modern/contemporary. So if I were keeping the ovals, I'd stay with the white. I think crisp and clean (white) works in most every style bathroom - beachy, too.

Prefer the white tile.

Thanks for the feedback I appreciate it. I was ready to ditch the white for the second bathroom.