Here is a "stone look" Armstrong product linoleum that will not compete with all the color of backsplash. It is slightly darker than the cabinets which will ground the room nicely. Agree that you probably don't need more tile lines.

Your tile looks like it might have a bit of a soft gray/olive green in it so I'd go with a light olive green. Here are some color ideas as the page you posted isn't big enough for me to really see the colors.

Thank you, Stan, for your advice. I was contemplating putting a similar light like yours above the cabinet, but decided I prefer lights on either side, as there is a lot of space which I'd like to fill a little. I will also put them on top of tiles, so another point to consider. The ones I had chosen only protrude 90 mm from the wall, so I wonder if they should protrude at least the same as the cabinet, which is 150 mm, to illuminate the face, when putting on make up or in general. Here is a picture of the lights I really liked...and another one in a room situation ( not my bathroom), but they are next to a mirror with minimal depth. I like them a lot, but am open to other options, just wondered about projection.

My kitchen (a second small one) in a Georgian house has old terracota tiles 6 inch square, which I have recently had polished and want to keep. The area is approx 12 ft square with 10 ft high ceilings. There is a large Georgian window on two of the walls, with an entrance door on the the third wall and a fireplace on the fourth wall, into which I have managed to put a cooker, with two built in cupboards either side of it. I need a sink, integrated washing machine, integrated dishwasher. The walll with the door is plumbed for water, but it could also go on the adjoining wall under the window ?? Please any ideas would help, also colour scheme. I am normally good at this but the dimension, ceiling height, tiles have thrown me a bit on this one ! Appreciate your suggestions. Thank you so much