I think it will be difficult to find something to match. I could be wrong but, from the photo, it looks like the drive was some kind of crazy paving made up from broken slabs - 2 or 3 different colours (?) which have since weathered & faded. So if you found something similar to replace them, the colour would most likely be brighter. What happened to the parts of the drive that the builder took up?

I wonder whether a darker wood effect tile would work on the floor? Darker wood seems to create a more classy feel whereas the pale wood tiles (which are nice) seem more beachy.

Walls and Floors have these https://www.wallsandfloors.co.uk/white-tiles-white-floor-tiles-15072 https://www.wallsandfloors.co.uk/matt-black-white-floor-tiles-black-floor-tiles-15071

Hi Kim, your bathroom looks pretty compact, so my humble suggestion would be to tile only the bath/shower section and leave the other walls free of tiles - it will make the space look bigger and brighter. And maybe you could have the metro tiles laid vertically to give the space a bit different look rather than going for the usual horizontal pattern. I'd then look for some feature tile as a splashback behind the basin to add some variety. Hope it helps, but feel free to reach out to me if you'd like to have a chat about it. Best regards, Anna