It's about 12'x16'.

I understand your point about espresso. I guess it depends on just how dark and opaque it is. I really hate orangey and oaky stain colors. But I can appreciate just the right tone of a wood stain on a low grain wood. I think this could look great with a charcoal painted vanity. But I want to consider the possibility that I could make the room seem too cold or sterile.

I'd be concerned about the glossy slick floor.

espresso vanity will not add warmth, an actual wood grain in a sleek modern panel.

I'd use white tile in the shower so if feels open, anything dark will feel too closed in for an elegant looking bathroom. Chrome fixtures, I hope.

Are you using that wallpaper or is that fabric?

Tile is just sitting on a rug I have. Not relevant. Sorry

The before and after should be pretty striking. I bought in the state 😖. Will add white freestanding tub

That is a very bossy, dramatic floor tile. If you must have it, then all other tile, vanity, tub/toilet, lighting and hardware selections should be quiet in color and style. Espresso is not a current wood tone so opt for white cabinetry.

Wood is the timeless way to warm up rooms in cool tones like the bathroom you have in mind. Espresso would be all wrong--adding another cold finish.

I don’t think all other colors and stles have to be quiet, they just have to look right. The floor need not be the star of the show. @housegal200 ’s picture is a great example. You need to pick other elements that rise to the occasion of your floor.

It’s a nice sized room and the herringbone will work. I’d like a rich walnut for the vanities. Almost like in the pic housegal posted. Does that apeal to you? Your inspo pic feels very feminine. I’d be more inclined to go masculine in here.

I like the small black tiles you chose. I’d rather see those in a herring bone and the floor in a different pattern.

You have such great windows, if you add enough lighting, the room will not look dark even with your dark tiles.

Have you thought a out how you will not go skidding across this sleek floor?

Thanks for all the comments. I think espresso was the wrong color description. But I was thinking medium dark and want to stay away from anything that reads "rustic". I do like a Brazilian walnut tone if I could find it. It's much easier to find vanities in painted colors (gray or charcoal or black). I'm kinda over white cabinets. And I'm not sure I'm ready for the spend of custom cabinets right now.

I do realize that the floor is bold but I LOVE it. I love bold 😃

I intended the small charcoal tiles for shower floor and possibly accents. I've had bright glossy solid white suggested for the shower walls. I just worry how a porcelain will blend with marble floor. ( I once started white porcelain in shower of a smaller bathroom reno that had marble as accent wall behind vanity and I hated how they looked together. Told them to stop the work and ended up putting marble in the shower. But I don't want marble in this shower.)
I've also considered a subtle 3D black tile that husband likes. But I'm not sure if that's the right place for a dark/ contrasting element.
There are also several varieties of mosaic patterns in the same marble I thought of putting high in the shower or elsewhere as accent.

Not sure about masculine vs feminine...but I do want to have some darker elements. (Is that masculine?) it's just deciding where.

I haven't really worried about slick floor. Maybe I should. I have a couple Tibetan lamb rugs that I may use at the vanities. But, of course, I don't want to cover all my new marble!

What about a walnut floating vanity like this from Room and Board? They have tons of vanities that come in walnut. I like the idea of a floating vanity because you can see the herringbone pattern extend beyond it towards the wall.

I like the black tile for the bathroom floor.

Perhaps a grey wall tile for the shower walls? Or can you do more of the floor tile on the shower walls?

Taht floor tile makes me dizzy just looking at it so it rules every other choice in the space The choices IMO are all too busy for a bathroom where IMO finishes need to be simple to keep from getting up one morning and saying "what was I thinking" IMO adding any wood will requite it to be very quiet so I think I would do painted no grain to see. I will gie you my choices for bathrooms 12 x24 porcelain plain tile for bathroom floor and shower walls the same tile only smaller for shower floor. Then add some nice vanity , sinks etc down the road a simple paint color change an new accessories and anew look BTW I love wall paper in my spaces easy to change when I want new look not like awhole new redo and gut jiob. My cleants have always thanked me down the road .

I'd do a warm wood for the vanity, but you could do gray, too, and punch up the color with towels and bathmats. I'd think red would be stunning. If I woke up to that tile, I would probably admire it while sitting on the pot, doing my business, not wonder what I was thinking in choosing it.

The floor tile is the star of the show. Everyone else has to be simple. Have you considered black penny tile for the shower floor? Or a light gray penny tile? Solid white porcelain slab walls for the shower are easy to maintain and, again, don’t take away from the floor tiles.

A medium wood vanity is a great idea. Agree with Kendrah that floating vanities help enhance the floor pattern. The mirrors can
be framed in a similar wood, or just frameless.

I understand my choice wouldn't suit everyone (what ever does?). But I saw this floor 5 years ago and I still love it. So I'm not worried about regretting it. 🙂. It's a natural material and I feel using it only on the floor keeps it from being too overwhelming. (I've seen a lot of pics of it being used everywhere, overused IMHO. And I like the herringbone pattern because it doesn't require trying to match up lines that really can't be done well without using slabs.). I just can't go wallpaper. Growing up in the 80's/90's, it's ruined for me forever. All trends circle back, I know. But It will always seem wrong to me...like giant shoulder pads.

The tile shop I started at only had this one tile in the charcoal color I wanted. But I can look elsewhere for penny or other.

I may look for a light/medium gray large format tile for the shower wall (cuz I'd also like to avoid a bunch of white grout. I know I know epoxy grout. But I don't fully believe in that).

I'll look into the floating vanity. Aesthetically it makes sense. Just a little loss of storage space ... at the very least I had been seeking a vanity with legs so that the tile underneath is partially visible. 😀 so I had been thinking on those same lines.
I do already have a big chandelier for a lot more light in the room too.

Good news is that anything will be better than those horrific pink 6x6 ceramic tiles covering everything!!

I never quite understand the “trying to warm up…..”

I used a white vanity in my gray and white bathroom. It’s bright and crisp.

If I wanted warm, I would gone in another direction,

It’s not easy coordinating tiles. Many, many shades of whites and grays

It will be a very unique customized space!