Wow I LOVE those green tiles!! What color are your lower cabinets?

I love your 1st inspiration photo and those tiles are amazing.

Here's how those green tiles might look with white cabinets and counter and terra cotta floors.

When you say terracotta, do you mean like the red saltillo tiles?

I really dislike the red saltillo tiles and ripped out thousands of sq.ft. in my Spanish style house. It is a very "bossy" design element that dictates what can be done with the rest of the space. Are wood floors an option?

Terra cotta or saltillo tiles are a valid choice for a spanish style home and add a lot of warmth. Maybe the OP can post photos of all the choices so we can see how everything works together.

Here’s a beautiful kichen with saltillo tiles

I think you have your answer in the inspo photos you posted: solid white counter tops, then do the green tile for the full backsplash. This is an instance where I think copper sinks/faucets and hardware would be awesome. Picks up the reddish tones of your floors, while giving the place a bit of shine. Don't go hammered, though. Will be too busy with those tiles. Alternatively, you could do a faux stone sink that has a terracotta/tinted concrete look:

Diana, if you ordered saltillo tile here in southern CA, you would not get the tile installed in the photo you posted. That looks more like something found in a house built somewhere in southeast USA.

Saltillo floor tiles tend to be square and have texture to them, kind of puffed up. They are not a great flooring for ageing in place. We really disliked them as their raised design caused furniture to wobble, was hard for kids to play on the floor (can't set up lego or do a puzzle) and easy to trip on.

Just giving my experience to the OP after actually having lived with saltillo tile in our current house. We lived with it for a few months, realized it wouldn't work for us and started removing it as we remodeled the house over several years.

No advice, but man I want your house!

Yes! I'd recommend either Dekton Zenith or Daltile One Morning Frost. The Dekton surface is pretty darn indestructible: it's what they call an ultra-compact engineered surface made with porcelain and resin. Actually saw a demo where they wrote on the white countertop with a red Sharpie marker and it wiped off, no sweat. Probably a bit more expensive than the Daltile One, but also probably worth it if you want that look. Installing that surface right now in a client's kitchen. Will share photos when available. P.S. Make sure the fabricator is certified for working with Dekton.

I believe she envisions not Mexican style pillowed traditional Saltillo tile (which I have lived with, and can be charming), but European flavor terra cotta. Here is some eye candy from one of my favorite websites,Pave Tile.I have never used it or ordered it, but only dreamed of it. Here is a bit of European flavor terra cotta (not pillowed). Their website has some of the most beautiful pictures.

I think the white quartz photographs better than it would look and feel in person. Plaster, wood, and terra cotta are all warm tactile materials and quartz would clash with this feeling imo.

I’d look into a light limestone countertop if you’re ok with the aging properties or the light concrete you mentioned. I like teal and darker green zellige but I think you’d have to have it en masse (as in full walls of tile) for it not to appear choppy in your space. I would also consider Tadelakt plaster for your backsplash.

https://designingidea.com/spanish-style-kitchens/

We were advised against Saltillo for chipping. We used Arto Brick instead. Great indoor and outdoor solutions.

https://www.arto.com/