Option 3 is the best, it's beautiful. If you are going for the look shown in the first pics, which don't have grout in lines, I'd definitely go with option 3. Having no grout lines will also keep your floors looking cleaner.

Honestly I wouldn’t go with marble in your space. It’s a mismatch for the formality of the home. You don’t have the grand open foyer of your inspiration pics and it will look like you’re trying to make a casual home formal but it won’t quite work. How about a slate look?

While marble is gorgeous and very high end, like the homes that have it in the photos, your house will look better with what Bri Bosh suggested. You can still make your floors beautiful with a tile better suited with your colors and furnishings.

I agree your house is nothing like the pics you show , keep it simple and it will actually look better , from what I can see some new furniture that fits the space should also be considered also the color of the tile you choose needs to work with the warmer colors I can see.

I agree with the previous comments about not selecting the gray white tile for your foyer.

Placing tile on the diagonal will make the space look larger. A selection in a warm tone will work better in your home.

I like the idea of using the wood plank look tile in a herringbone pattern.

Really really late update: I decided to go with Kolasus marble. I’ve been loving it, and always get compliments when guests enter the house! So far its held up nicely and isn’t slippery as it would appear to be. Definitely brings out a touch of class. Thanks for the comments!

It actually looks beautiful!!!!! I know they said your house wasn’t “grand” but I’m glad you went with what YOU liked. And it’s awesome