Terraced house kitchen: too expensive or reasonable price?

Countertop:
Natural stone satin finish 30-100, thickness 20 mm Nero India

Depending on whether the 20mm or the 40mm from the partial dimensions are correct, that alone is 2-3 thousand euros.
The rest is of course all correct, it also depends on the content.

What I also notice is the distance between the island and the kitchen unit.

I was told that a rough guideline for comfortable passage is about one meter. On the left side, I see 92.5 cm, which, according to my non-existent expertise, is acceptable. However, at the top, only 80 cm is planned, which, according to the guideline, would clearly be too little... In addition, the countertop will probably overhang by a few centimeters, so it might be a bit tight.

or apricot-colored washed walls :) we all remember that, right?

Nonsense ;) … I didn't like apricot. For me, it was salmon-colored :D