How did you find an actual fireback to insert? I did a image search for firebacks and picked one that was shot straight on and square (easier to copy and paste squares or rectangles than ovals and other shapes). I played with the image in Paint to get it to the right size for your image. I learned this all by trial and error when I worked on my kitchen design. ...that's more gray, so I guess if I chose a gray one, then Carrara marble would probably look better that calacutta? I personally prefer the marble tile over the white subways and prefer calacatta over carrara for your kitchen. You've got a lot of white and black going on already; the gold veins bring in the warmth from your lovely wood floors (and possibly your walls, can't quite tell what color they are). I don't think you have to have everything match exactly. As long as the tones compliment each other - no cool grays with warm grays - I think you can blend a grayish fireback with near black counters and calacatta marble tile. Personally, I think that also makes for a more interesting mix.

Pretty kitchen! I have a similar countertop (though mine are more gray) and went with Classic Gray which is a warmer gray. I wouldn’t do a beige or ivory. Or you could do a darker color to add contrast since your floors are very white too. Here is classic gray next to my cabinets and counters.

101streitired. looks very nice. could I offer one tiny bit of advice? thanks! The window. what you have is all very white and very solid. the mini blind is my pet peeve over kitchen windows. let me show you a photo shop of a new window treatment, and possibly a sconce. ( realize you can't do a pendant, and I know you have the trim piece across the front. but at least look at the window treatments) don't be afraid to add some cutting boards and greenery to the mix either

i have grown to like it but still wish gray veins were more visible for contrast and interest. The full backsplash was the splurge. i was given a good discount at final payment. was told parts of slab they cut can have less veining and have more white. Each brands slabs (color & pattern) of quartz are the same but NOT where they CUT. i should have looked at slab and pointed out what to use for backsplash. thank you all for being supportive and making me feel better! all the best!