Since the floor is going to be black and white checks, see if you can get tile for the shower walls that is the same as the white floor tiles. I hope it's porcelain instead of real marble. Porcelain is more practical. You need to stick to the same manufacturer so they're really the same. You can see that's what they did in your inspiration pics. In the first one they used a small rectangular size and in the other it looks like a large size. Hopefully they will also have edge pieces available as the more traditional vanity indicates a Schluter trim wouldn't be as appropriate. The shower floor can be the same in a 2" square or hex, all white or black and white again.

Thank you for your comment. its real marble havent been able to find anything porcelain that looks how i want it to -any suggestions?

If you want the tiles set on the diagonal, be sure to mention that to the tile guy before installation. It is more work and uses more tile.

I love your checkerboard floor. Link is for one of my favorite saved Bathrooms on HOUZZ.

https://www.houzz.com/magazine/bathroom-of-the-week-old-world-style-in-green-marble-and-brass-stsetivw-vs~160391793

Floor tile for both the bathroom floor and shower stall should have a non-slip texture to avoid slipaccidents when wet.

The tiles you've chosen might work really well as the flooring in the shower as well. However you'd have to make sure they're waterproof and would hold up to the shower. You then could look at doing a lighter tile for the surround. Here are a few visuals of gorgeous bathrooms we have done. Take some time to look through them and see if anything else in these bathrooms might work in yours as well.

Kips Bay Decorator Show House Bathroom Suite · More Info

Urbanology Cottage · More Info

Urbanology Cottage · More Info

Guest Cottage Phase II · More Info

Fort Worth Historic District · More Info