I would suggest to install the following, one down light above each basin, approx 130mm from wall. Then one light centre of room between shower and vanity.
I love wall scones either side of the vanity mirror but as dreamer posted you’ll need some light between your head and the mirror so you can see when you’re getting ready. You’ll also need some light for when using the the shower , either a light centred as dreamer suggests or another solution.
dreamer
bigreader
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