That's a nice kitchen. The tile countertops and wall mounted faucets have been popular on the west coast since the 20's, but I rarely see them around here. Older kitchens in this area usually have countertops of either metal (Monel or Stainless), linoleum (likely worn out by now) or especially laminate, as Formica is a locally based company.
The "self-cased" opening is nice; there was one between my original kitchen and the dining room. The wall was plaster over rock lath. The problem we had was that the edges were squared, so the white coat of plaster chipped easily, even though there was a metal bead under it. I've been in a few houses during the last couple years that has this treatment of openings. They were custom built show houses, all in the million plus price range, so had lots of extras.
For the floor, you may want to check out Armstrong's LinoArt Marmorette line. They have several shades of green that might look nice. You might want to consider doing the field in a light color, with a darker border.
