I did a little thinking on this. Light socket to left of mirror- it is attached to a stud on the right side of the little electrical box. I am going to replace it with a 3 capacity box, putting the socket in the spot on far left, then patch/cover the other two. This will allow me to move the mirror down a few inches to be centered on vanity. I will still have room between it and framed the mirror. Lights- I will then be able to center the lights on the vanity/mirror, not on the sinks. But the original hollywood light had one wire in middle of fixture. To install two lights I will need to split that and run through the studs to get to new opening for new fixtures. I was not thrilled about patching drywall to do this. But...... if I remove the mirror ( which is not glued as originally thought) I can open up the wall behind the mirror, do the split, bore through studs, run new wires up to the new fixtures holes. Then I patch the wall which will be covered by the mirror so it doesn't have to be perfect!!!! It is a lot of work but will be worth it in the end. Can't wait to finish and post pics.

Depends on what kind of mirror you're using.

what are the colors of the room?

https://www.houzz.com/hznb/photos/contemporary-tiburon-home-contemporary-bathroom-san-francisco-phvw-vp~2864264 This is the look we are going for