I do love that you chose a floor with no red and the fact it's very neutral. I think it works well.

I also like your choices. I recently remodeled my kitchen and chose very similar options. Our cabinets are called Seadrift - nice medium taupe, with a charcoal glazing. The floor is a bit darker than yours but not as dark as walnut - they are very cool in tone, kind of an ash grey/medium taupe brown. Our counters are Quartz in Polished Carrara Marble, and the backsplash is 3x6 subway set Carrara marble tile.

I really like the cabinets and the floor selections. I'm not loving the counters though, as the pattern reminds me of the cultured marble countertops my grandmother had in her bathroom (complete with a shell-shaped sink!) I would personally pick something with less of a prominent pattern. But, if you love them, the colors work well with your other options, so go for it.

Like cabinet and countertop, but floor color is off a bit in terms of cool, vs warm coloring. Of course, colors on monitors are notoriously bad but your flooring looks yellow undertones and the countertop is cool whites with grays and the cabinet is "smoke" which implies some "gray" graining? I would look for a more French Limed look for your flooring. It would go extremely well with your other choices.

Reclaimed French Oak Planks Vieux Mas, 100 Sq. ft., Solid · More Info

That is engineered French Oak example. Just look for something with some gray aspects to it. I think you would like that overall look.