Out of your selection - I would choose the middle one on the bottom row - it gives you a modern look and pattern without being too ghastly - it would fit in with the retro vibe as well. Good luck!

I think being a very small bathroom we've decided to do all white matt wall colour and dark tiles for the floor. Let see how it turns out. We're going to add features such as lights and mirror with frames around it. I'll send before after photo.

I work in tiles and a trick you can use is to lay the tile horizontally on the 'narrow wall'. This gives an optical illusion that the room is wider. These tiles at around $50 each can certainly add up so a wise use would be to use as high impact. In the ensuite use them behind the bath for the whole wall. Use white wall tiles for the rest of the walls. If you want to add more colour, tile the spa box in an colour tile that exactly matches the blue or grey from the pattern tile, use a matching grey tile on the floor instead of white. Or use the pattern tile behind the spar, make the rest of the room white and add a matching grey vanity. It's a lovely tile but may become a bit gaudy if you have a bit here there and every where. Again with the main you will probably not get an exact match with the outer room timber floor and it could look like you tried to match it and couldn't better to go for a complete contrast. Use the same tricks as the spa bathroom and don't forget matching blue towels for a bit o colour. Hope this helps.

My initial thought is it May make the room fell narrower doing the short wall opp door. Might be ok if not to great a colour contrast. And if it is beautiful that might be the way to go. -other views?