bathroom design idea help please

suered

Morning all. About to convert room into en-suite. Am dithering about the tiling as basically want a black/white scheme with possibly feature border (don't mind if horizonal or vertical, big or small tiles). Do I tile:

1. everything in sight - i.e. all walls and floor (thinking white walls with blackish features plus black floor?)
2. the "top" wall that all the sanitaryware is coming off of plus the shower enclosure (gives option of painting other walls for colour)
3. the "top" wall plus the whole of the wall that the shower runs down (gives option of painting for colour)
4. some other combination

I do want fairly big tiles.

(btw, the wall with the window - yes, the window really is that big - it takes up most of the wall - there's about 60cm width either side of it, a very narrow bit above it and about 60cm below it!)

Am worried that if majority white, will seem too cold and clinical - and as always, being done with half an eye on if I sell on. And, of course, if any of the walls are painted, the cost of skimming/painting is cheaper than tiling and it's easier for peeps to repaint if they want to their taste.

Thanks all

cddc

Have just seen a stunning wet room tiled in dark grey both wall and floor just with the shower area tiled white. Looked great. Something similar could look equally good in your area. Layout was similar to yours with with shower at one end and window at other.