Lovely, would you be happy with something a darker shade of grey or a more lighter neutral. Im only thinking as time goes by it is easy to change your wall colour than your cabinetry and colour can be added to your kitchen in many ways that are simple change. Have you thought yet about your splashback. I made my decisions on my kitchen by first thinking what I don't want. For example I am not a fan of polished surfaces so then I went abou looking for matt ones. Sometimes I think with the endless choice it's best to start at the other end.

great story, proves it does pay to shop around, I always search grays online for appliances etc you can save a whole lot of money, congratulations it's looking fantastic

What a beautiful kitchen! Colour really depends in the style you are looking for...I have a similar space to you and I went with this light blue/aqua tile....I love it and the first thing most people comment on is how calming it is....I wanted a casual calm beachy feel to my home and it worked perfectly for me! Another option I saw at a friend's recently was a soft ?dove grey glass subway tile (similar to the 2nd photo) in a herringbone pattern...it looked amazing with all white cabinetry.... neutral but if you love bright red option then accessories in red such as toaster kettle etc would really pop...and that way if you tire if red u can change accessories cheaper than a splashback/wall.

Thanks for your thoughts. This combo of materials and colours should outlast any fickle trends.