Just to offer a different view point. Your floor tiles look amazing. Why not flow the idea through and use tiles of that ilk as your splashblack. We have just recently finished a kitchen with a similar feel and our client opted for patterned wall tiles as their splashback. Based on your comment about the floor being chosen to banish boredom If you are worried about carrying through more of the same tones and want to inject colour, you could always do this through your accessories, that way if you fancy a change.... The colour tones you have chosen provide a great canvas on which to complement or have fun with colour.

I never, or should I say my husband, hasn't, got round to finish tiling behind the wash basin so we used a 'washable wallpaper' and it drives me mad everyday. It never ceases to surprise me how much toothpaste, soap etc gets splashed against the wall and no matter how much I wipe it, it always leaves little marks which are impossible to get off without damaging the surface. If I could, I would tile every last inch of the bathroom. A quick spray and wipe and it always looks clean. I feel like I'm doing an indepth scrub constantly and it still never looks quite as pristine as I would like

You don’t fave to have the same height all the way around the kitchen. You can have a 10cm upstand around most of it and then taller behind the hob. Personally I like the splashback behind the hob to be wide so make it the width of the shelves or the wall from the window to the corner and like Isla says make it the height of the shelf. Alternatively match its width to the wide cupboard and two small ones under the hob and then height size again shelf height or 30cm

Hi! Not keen on metro tiles to be honest although the narrower vertical ones aren't as bad 🙈 Just thought of a nice shaped one but struggling to know what colour works with a marble worktop 😂