I love those long floorboards/wood-look tiles and they are the feature so you wouldn't want something too busy on the walls... personally I would go with a larger format say 300x600 rectified edge white tile with a matt finish for the Hamptons look... what's your vanity?... a timber one would tie in nicely with the floors and all the white... very Hamptons :)

also will give illusion of a bigger bathroom if you use bigger tiles ..I used small ones on one wall as feature wall and larger ones on other walls ..

Amazing, can't believe it is the same space!! looks much more roomier. Well done!

Are you tiling the shower base? If so the larger the tile then the more cut tiles will be needed to get the drainage right to direct water to the floor waste. If it is a small bathroom make sure that your tiler aligns the grout lines on the floor with the grout lines on the wall. If they are slightly offset they look pretty bad. Would you consider using the same 300x600 tile on the floor and wall? If so then lay the tiles horizontally, not vertically. However with any good tiling job the better, flatter and straighter the wall is before tiling will result in a better result. Don't expect your tiler to make a perfect job if the walls are not perfect before they start! Best of luck Dr Retro of Dr Retro House Calls and Dr Retro Virtual Visits