Try Sparkk they print customised fabrics here in Australia. They have collections that work with this aesthetic. Good Luck!

Sounds like a very stressful situation! If there is absolutely no way the builder will allow you to change things (even if they did, I imagine they would ask you to foot the entire bill of pulling the tiles down and replacing all water proofing in addition to new tiles), I can make a few suggestions for improvement. Firstly I would suggest replacing the tiles above the vanity with a white mosaic, a patterned or a textured feature tile/strip. You could also use this same tile to replace the vertical feature in the shower. There are some beautiful shapes and sizes available to choose from. Secondly I would address the grout situation in this way: Floor - dark colour grout & Walls - Light colour grout. Lastly if it does not prove too difficult or expensive, maybe replace the tiles below the vanity with a plain white tile (could be similar size). Good luck and I am sure once you have a lovely mirror up and some crisp white towels, it will look just wonderful.

Hi creativelychallenged, I'm pretty sure all the tiles are faux-marble from Beaumont Tiles. I've used them in bathrooms and they are cost-effective (from $40sqm un-laid) and look beautiful. Marble and now faux-marble is a classic look so not prone to dating. You may have noticed its recent popularity due to the faux-marble now available as the average homeowner may not have the budget for real marble. People worry about decor 'dating' - think about what you love, what will make you happy to live with - decor doesn't last forever because our own tastes change and decor can suffer from wear and tear. Choose what you LOVE and you can't go wrong :-)

The tiles can be cement, but need to glazed to protect tiles. I have wonderful hand made Spanish tiles as my splashback. Not a problem.