I like your idea. However, I think I would prefer to have the side walls tiled differently (smaller tile, still neutral), to give more impact to your vertical flow. You could still do the back of the niches with the glass tile.

I'm struggling with bathroom tile design myself, and driving myself crazy in the process, so I don't feel I can provide any useful opinion/suggestion as to whether you've hit a home run on the accent tile placement. But I guess I'd say that the little piece on the tub sort of bugs me, even though I totally "get" why it's there for balance, use of 3's in design, etc.

But more importantly, WHOSE GREEN GLASS TILE IS THAT?? I adore it, and for not the first time think that maybe my own tile woes could be solved by choosing something like this! Uh, how expensive is it? Although I bet I could guess. Sigh.

Anyway, please, please share the name of the manufacturer so I can phone my wholesale tile guy and continue to drive him bonkers with my new ideas!

It's Richards & Sterling, and it's over $50 a sq ft...sorry.

How else can you use the tile so that it looks easy on the eyes? If I remove the tub piece it sort of makes everything else look weird.

Smaller tile on the sides, like maybe a 6x12? That'd be half the size.

Is that what you were thinking?

Okay, I cannot solve my own tile issues, but I keep thinking about yours, forthemame!

Have you thought about using the green glass to encase the tub? Both the vertical and horizontal tub surfaces? Then leave the walls in the large-format neutral porcelain tiles. I would not repeat the Richards & Sterling glass in the niches -- too matchy-matchy, and it might dilute the impact of the tub. The niches would be fine in a small glass subway, picking up one of the glass colors. But maybe even better if they stay neutral like the walls. You could pick up the pretty glass tile colors in other elements to tie it in.

Just my thoughts! And thanks for identifying the tile for me. I appreciate it.

That's an interesting idea. I'll have to think about it. Thanks!

Actually there's too much grout to have it on the bathtub deck. Gotta say no to that idea.

Personally, I would prefer it if the wall stripe moved to the right, then line it and the tub stripe up to the one on the floor. Like flowing water off the top of the wall down over the tub and onto the floor - especially if you staggered the tile where it ends on the floor, maybe not possible with the floor tile you've chosen. It is beautiful accent tile.

I'm leery of putting the glass tile on the floor. It could lead to a nasty fall because it would be very slippery when wet.

One long line of glass tile will look kind of blah...

And glass tile on the floor is fine. It's got more friction than the porcelain. The grout has a lot of friction.

Too bad about the grout. I had liked the idea of consolidating the impact of the striking glass medley.

Final thought, which I bet you've already had: accept a budget uptick and cover the entire wall behind the tub in the glass medley. Of course, then I'd want to encase the tub itself in the solid-color glass tiles, assuming grout lines are smaller and wouldn't be an issue...

Good luck! I'd love to know what you decide to do, and to see a photo when all is done.

I like both of your tile choices, the glass tile is beautiful and I agree that with the vertical lines in the field tile, setting the glass tile vertically is the only way to go.
If it were me I would put the glass tile down the middle of the left wall carrying it into the niche and back out, and then use it again on the middle of the right wall. But that's just me, if you like it ... do it!
Check out this link on vertical tile to see if anything inspires you or confirms your idea:

Vertical tile

I wasn't able to find any examples of what I was trying to describe above, but thanks to Doggiemom's post, I found a couple - of course, you have to use your imagination to translate the fireplace application to your bath. Not blah at all, in my opinion, but her idea sounds lovely, too. Don't think you will go wrong whatever you decide because all the tile is gorgeous.

[contemporary living room design[(https://www.houzz.com/photos/contemporary-living-room-ideas-phbr1-bp~t_718~s_2103) by austin interior designer Allison Jaffe Interior Design

[contemporary bathroom design[(https://www.houzz.com/photos/contemporary-bathroom-ideas-phbr1-bp~t_712~s_2103) by chicago interior designer Habitar Design, Inc

Doing the entire back wall in the green tile would cost $2,500 in tile alone. I can't afford that!

Thanks for posting the pictures. The second one is very applicable. Where did you find it?

It was in the link that doggiemom posted - Houzz - I believe she searched for "vertical tile". If you click on the pic it takes you to where it is in Houzz.

Nice find ^^

i don't have any ideas but love the choices and can't wait to see what you decide.

We're going with the sketch I think. Confirming today when we meet with the tile guy.

Well, I love your original plan. Offsetting the line adds a cool element and balances the room. If you're feeling a little reservation, you could try drawing it with the bands offset by only one large tile instead of two. But honestly I like your original idea.