Not to my eye. It looks very industrial/Brutalist- concrete and rust. Which maybe isn’t the vibe you want for a bathroom…or maybe you do :) The walls feel really dark and heavy and at odds with the floor. What would you like the space to feel like?

for these tiles to work, I think you need a flood of natural light... just like the image.

In a prison, maybe. But a prison wouldn't have a work of art type useless tub that no one will ever use.

How depressingly awful. You need a designer ASAP.

I’m not a fan of the wall choice but I like the flooring. Why not paint the walls a neutral color that compliments the flooring. Fixture Metal choice, mirrors and other decor choices like a beautiful piece of art could make this modern looking bathroom nice.

I agree with the above comments. These tiles don't make a good match together. The one is "cold" and the other one is "warm". If you like blue grey tile and brown you should find a tile that has a little green or brown - terracotta in it to match the warmth of brown. See example. Even so, for my taste is too "dirty" look and dark for a bathroom. Also you should consider place the brown on the floor and the grey to walls. Or place the grey one on the wall as well approximately where the height of bathtub ends and then add the brown. I would personally keep the brown - not the exact one showing in this render but something similar with no black in it - and add a beige textured tile to have a more cohesive look. But it still you should review this in a good 3d and of course test the real samples together in your bathroom with natural lighting.

Do you have samples of the actual tiles? An AI rendering is not the way to decide if things go together. On my monitor, it just looks blah - warm walls and a cool floor. Does the tile manufacturer show a mix of these tiles on their website?

Can you show us the actual tiles?

Not a great rendering. also not a good tub choice.

Sorry so this nothing like your space but you want help???? Post pics of the space you have and the tiles you want to use in a pic not some really ugly rendering that tells us nothing .The answer to your odd question is not those do not work together why would you think they would ??

Those gray floors would work but with a WHITE shower tile.

The floors of the shower would be the same gray tile as the floors but in a mosaic pattern.

The shower threshold would be white tile.

The walls would be white paint.

Vanity would be natural wood with a white countertop.

It's what we did and came out so amazingly beautiful.

Here is a sketch of the color blocking

Thank you everyone for your constructive criticism. I think it is unanimous that I need outside approval on my color choices. I will be back with a picture of my space. Right now the walls are open, so it is not a good look.