I would use the accent tile just on the back wall,(the window wall) not the niche. and the floor.

Use an arctic white subway tile with white grout on the walls, paint the ceiling white. I agree, a teak bench if you need it.

fresh and clean. the existing shower feels dark and dingy, especially at night.

Agree with Lyn with having the accent tile on just the window wall.

Agree with Lyn with having the accent tile on just the window wall.

Thanks all, I dont want to use it on the floor as it will be too slippery. So I have a neutral non slip that looks like a light stone for the floor both in and out of the shower. Does that change anyones opinion of where to use the mosaic?

Not the best shower layout/location to highlight a "statement" tile.

I don't love zellige, the chippy look and the way the tile feels. I wouldn't want it in a shower that is used every day.

The moveable teak bench is definitely a good idea.

I am not in favor of accent tiles or shower niches for that matter . I am glad you are doing the redo of the shower without the built in bench. I think using that tile on a wall will create issues trying to find tile to match the white of that tile and for sure way too busy for all the walls in the shower IMO. Iam not sure it works well with the bathroom floor so is that being redonee too. I think you will find by the time you rip out that shower the bathroom floor might need work too so maybe a nice simple 12 x24 tile for the shower walls and the same for the shower floor only smaller and use that accent tile for the bathroom floor , that would would my choice

If you are redoing the sink area, the spectacular mosaic tile would be beautiful and highly visible on the mirror wall. I'd skip putting it in the shower because the mosaic will require more fuss to clean than plain tile.

Assuming that the ceilings are 8' - that tile will be $9,000 - $10,000 to tile the entire shower (without labor or any other materials - just the tile) - and this is before adding at least another 15% for overage tile (that's what is recommended due to the type of tile).

Also, if you want the ability to replace some badly chipped tiles, you will need even more tile than the recommended 15%. Under product details, the seller has listed that pits/chips are "prevalent" + cracks are "medium."

The tile will need to be sealed - ceramic tile without glazing = very absorbent (like a sponge) - all those chips/pits/crack will allow more water intrusion into the tile. While this won't matter as far as your shower waterproofing (tiles + grout are not installed to prevent water intrusion), it will cause the tile to have dark spots/areas when holding water.

It is a genuine Moroccan handmade zellige tile = the tile installer needs to not only be a professional tile installer (vs. a "handyman" who installs tile), he/she needs to have expertise in installing handmade Moroccan tile.

Zellige tile has been very popular for the past several years (it's been around forever - it's just been trending hard). I like the look of zellige tile. The colorful zellige mosaic tile that you've posted is A LOT visually = very colorful + busy. I'd rather use on the bathroom floor (it's rated for floor use) - it will be easier to replace the bathroom floor at some point if/when you grow tired of it vs. gutting a shower.

I know people who have used authentic Zellige tile on a floor in a bathroom - they used like a tile "rug" (similar to when people use marble mosaic tile as a tile "rug"). They do not cover it with an actual rug (that wouldn't make any sense after spending the $$ to have the tile rug installed) - I asked her if it was slippery - her reply was that they haven't found it to be.

However, the tile "rug" isn't right in front of the shower - it's over by the vanity.

If you LOVE the tile + you don't want to use on the bathroom floor - I'd install it only on the window wall. It is meant to be a focal point = I think one wall would be enough vs. using it for all three walls.