What wall tiles with these floor tiles- bathroom

[Tomboytown]

I want plain white I think, but size, texture?

White, flat and matt.

Large ?

I would probably match the size and shape to the floor tiles roughly. You could also pick out the blue and do a small border in that shade to break up the white

Those are big floor tiles - I’d go for smaller on the walls. I think the aged look of the tiles won’t work as well with a large format wall tile.