Colour White on white is challenging. Why not have a go? Regardless of your skill level, this is a great learning experience that helps you understand light, shadow and reflection. Avoid overexposing. It’s that little bit of shadow that makes the white show up on the white.
...so I went with the bedroom light on white walls
I love this mask, I know it doesn't completely fit the criteria.
The paper lamp in the lounge room and the lounge room wall.
One doesn't realize how grubby the wall is around the curtain pull until one photographs white on white- or perhaps not so white.