Black and white bathrooms look Really good in small spaces.
There are situations that you can not enlarge a space. You have to work with what you have. We had a client with this scenario. Our client that wanted to redo their attic bathroom in their 1930's bungalow. This space is very small, but with some help, it now has some character.
To help them save money, their current vanity was in good shape, but the wood tone did not go well with the new color scheme. Our client painted the vanity, mirror frame and light fixture with a black gloss paint.
We added the black and white tile on the floor, upgraded their bathtub fixtures, and installed wainscoting on their walls.

Hand held shower in tub is an absolute must.
Re-purposed vanity. Repainted in a black gloss paint.
Mirror frame and light fixture - repurposed and repainted in black gloss.