your floors looks great I'd use it as your splash back.
Splashback Tile Colour Dilemma
Kitchen - splashback window or not; under cooktop oven or not
Help! I have a kitchen bench and splashback dilemma
Stainless steel splashback dilemma
From afar they looked really nice
I think subway tiles would be a really nice and timeless option -
for a budget friendly alternative and one that can be easily replaced, try brushed aluminium - used often as kickboard, but also looks great as a splash back... would look good with your marble look benchtop too ! This comes in a range of colours also.. see top pic
I think that you can get the tiles you want at aliexpress.com - make sure you select free shipping when you search. We have purchased all our bathroom tiles from there. Cheers & good luck
Hello :) We have similar coloured kitchen, and used a dove grey subway tile from beaumont tiles and laid it in a herringbone pattern. We are really happy with it :)
We're Team Subway Tiles too!
If you can find a high resolution photo of the herringbone pattern you like you can get in powder coated onto aluminium for a realistic, easy-to-clean alternative. It will give you exactly the look you are after for a fraction of the cost: