I want to add two more downlights in my master bathroom and am looking for guidance on placement.

I have a double-sink vanity and there will be one new light for aligned with each sink for symmetry. Each sink also has a mirror with vanity lighting in front of it.

I know that misplaced lighting, especially at a vanity, can cause problems instead of fixing them. I have three options for the new lights:

1. They can be over the sink shining down in front of the person standing at the sink.
2. They can be over the "standing zone" shining directly down on the person standing at the sink.
3. They can be slightly behind the standing zone shining slightly behind someone standing at the sinks.

The goal is more to add overall light to the bathroom rather than specifically to make it easier to see yourself in the mirror, the vanity light in the mirror is there for that. Any of the three options will provide the additional bathroom light I want but misplaced downlighting can make it harder to use the mirror. As a photographer my sense is that option 3 is best because the first two options (especially #2) will result in harsh shadows on your face when you are using the mirror but I want some feedback from people with more/better experience.

Thanks!