Got a floor plan with measurements? Got pix? Post them, please, to get more and better help.

In the meantime …

What you want for a tiled shower floor is good slip resistance, whether your tile is stone or porcelain. (That's not a bad idea for any tiled floor). Opinions on Houzz seem to be divided as to whether small tiles with lots of grouting provide enough slip resistance for a shower floor. As it happens, that's the route I took, using a basketweave marble tile in white with various shades of green. I also have green accent tile on the walls. See the room here: https://www.houzz.com/plans/primary-bath-pp~5420028?stepId=saved (you'll need to click on the first couple of pictures to see the flooring).

I'm not an expert. I asked my designer if the slip resistance of my chosen tile would be adequate, and I trusted his answer. I also put a grab bar in my shower, and had blocking installed for an additional grab bar to be added later.

That's all I've got at the moment. I hope it helps, and I look forward to seeing answers from folks more expert than I.

I am not in favor of the green accent tile my preferred tile choices in bathrooms are 12 x24 porcelain tile plain in a color you like use it for the bathroom ,floor, shower walls and the same tile only smaller for shower floor. I keeps it simple and much more timeless than accent walls with small tile and lots of grout lines . Use green for accessories or maybe even the vanity top but not for accents in the shower that is of course my opinion. I also do not like a bunch of differnt tile shapes all over it just adds to busy in arealtively small space .

I have added more information to the original post as requested. I appreciate those that have answered so far. Looking forward to hearing other thoughts.

This is a lot of wasted space, from the looks of it at a quick glance.....

Can anything move? Is the entrance from a primary bed?

Is the vanity chosen?

What is in the upper left corner? Lower right corner Lower left corner?

Are there pictures of the current bath>? If so , post them!

I appreciate the advice above, but i have seen quite a few photos with an accent wall and smaller tiles and I liked the look of it. i guess i was wondering if these two specific tiles would be bad together. Is this a disaster of a plan?

By the way, I greatly appreciate the comments and opinions that have been put forward it definitely has us thinking!!

I like both the tiles you show. Those greens are really pretty! I'm less sanguine about laying one wall in a herringbone pattern and the other walls with a horizontal pattern. Were you picturing a running bond brick-type layout for the horizontal, or stacked? Do you have a drawing of what you have in mind? Are you able to do a "test drive"? Even if you did a sample layout with something like dominoes or lego bricks, it might help you to see whether herringbone plus horizontal would really look the way you think it might look.

Either way, this isn't about green accent tile, as I had thought at first. My mistake.

In a space as small as a shower enclosure, I think I'd want any accent to be smaller. (You can see I like smaller accents if you look at my ideabooks!) Have you considered a fairly narrow herringbone stripe, against a mostly horizontal layout? And/or maybe a smaller scale tile in the stripe? Or all horizontal, but a stripe of the darker green against the lighter green everywhere else? These suggestions are a bit tamer than your original idea. That doesn't necessarily make them better, but as you are concerned about busyness, I think they're worth considering before you make your final decision.

I think what I'm driving toward is: Either use color for contrast, or pattern for contrast, but not both. And maybe not an entire wall as an accent against two, not three, of your four-walled shower.

Thanks for this feedback!! i like the idea of somehow setting some up to better visualize it.

Can you post some the shower accent walls you like? It would be helpful to see what about an accent attracts you and if what you are going for will actually be achieved with these tiles and in your space.

It can be easy to be swayed by inspo pics but they don't always translate well into all spaces. Proportion plays a big role and your shower is not very large. Let's see what you are going for.

I also don't like those two particular tiles together. I'm not opposed to maximalism or unusual or eclectic combinations. But, it is a lot of work to make two very different tiles actually look really good together. I think these miss the mark.

The dark green has a very interesting streaked and mottled look that I love. An entire shower in just the dark green would be quite striking especially with the right fixtures.

I don't mind the two colors together. But the wavy finish on the lighter green just isn't going with the dark green.

Lastly, @JAN MOYER is stupendous with layout. Even if you think you have the perfect layout, let her have a go at it. I have yet to see a design that she hasn't made more functional and more pleasing.

Decision paralysis is real! There are so many combinations of tile size, grout color, layout pattern, and accent placement that it's hard to know where to start.

Since you're working through the shower design, one approach that works really well is anchoring everything to one statement tile first (usually the main floor or the feature wall), then letting everything else be a quieter complement. Large format tiles (like 12x24 or 24x48) on vertical walls minimize grout lines and read cleaner; if you want visual interest, a stacked horizontal pattern can feel contemporary without competing with a patterned floor. For grout, going a shade or two darker than the tile on floors and lighter on walls is a classic move that hides wear while keeping things fresh-looking.

For this king of thing we'll usually snap a photo and throw it into Madespace and look at how all the elements layer together. You can just upload a photo then use natural language to make design edits like 'try green herringbone tile on the walls in the shower' and see it immediately. It's a really helpful way to get a feel for what you're liking and how it layers together with everything else in the room. Moodboards and material samples always read differently when you see them in scale and relative to everything else in the room.

Good luck with it! I'm sure it will turn out amazing!

It is a really odd layout. Maze-like from mis-aligned corners, with lots of wasted space. Not taking advantage of the window.

Questions from your previous thread were not answered, so it kind of petered out and you didn't get continued help.

You previously inferred a low budget. However, there is a line you cross where moving plumbing to achieve a better layout will be worth more than finishes - finishes can more easily be upgraded/downgraded, or changed/added to later. Of course that line will vary for each person. For me, without knowing much info, just a couple initial layouts to try for a simpler layout and/or maximize openness.

To my eye looking at tiles on the computer, I do not think the tiles play well with each other. The dark olive tile looks yellow based and the paler tile looks blue/gray on the screen. Cool lighter tiles vs warmer dark tile. Do they appear like that in real life?

I'm not sure what is driving this remodel but there will be a lot of grout lines to keep clean. I also agree there is a lot of wasted space in the room.

FWIW, both tiles look cool to me, not one warm and one cool. Just goes to show the dangers of trusting monitors when it comes to color decisions!