Rustic in some interpretations can, I suppose, mean live edges, knots, splits, and so on, although there are probably alternative names for that look. I don't think rustic is a description that can be specifically pinned to that aesthetic. I tend to think of the description rustic attached to furniture and furnishings as usually, but not always, denoting solidity and durability in service - typically, items created for use in rural environments have a hard life, and well made rustic items perform well. Of course, not all rustic items perform well, and can be crude in construction, which is not the same as simply constructed - simple can be excellent craft, but crude frequently means poor craft.
The meaning I intended in my comment was that there is in this kitchen one side of the aesthetic that has the solidity and strength (muscularity?) and timelessness of oak in quite large dimensions (but not massive) with substantial metallic supports coupled with something reminiscent of practical business like farmhouse kitchen quarry tiles (that from a practical point of view might actually miss the mark), plus there's the rather business like, almost commercial, grey sink unit.
Set against elements of the tough and substantial is the length of cabinetry and electrical items, some hidden behind the cabinetry, against the long wall which in comparison has a relatively delicate appearance seemingly springing from a lighter and more contemporary design direction.
I think you're aware that I have no criticism of the quality of the construction you've put into this kitchen. It looks to be as well made as every thing of yours I've seen over the years. It's just that there's something uncomfortable about the juxtaposition of, to me, seemingly divergent styling in one space. Slainte.
