what is going on here? who did this? And it's not a sconce. It's an outlet/wall switch.

You have an outlet on the right. what are the 3 switches on the other huge outlet, placed directly over the sink?? that needs to go. Put it dead center if you have to, but it needs to go.

see how the outlet is in the middle of the sinks? do yours like that.

as for your lights, it needs to go like this. (but one mirror) Remove that middle one. And figure out the height for each fixture on the ends. one is higher than the other. depending on the height of your mirror and space up to the ceiling, you can move one of them.

and you might want to do the double instead of this triple light fixture. its a smaller space. A double light over each mirror would fit and look better.

Personally I'd get the lights that shine downward and do a ceiling light for over-all bathroom lighting.

I see that you're doing a mirror that will have the switches in it? have them put the outlet dead center if that other outlet on the right isn't enough. they have to relocate the outlet right over the sink.

some pictures to show you what might look better. Down facing lights

this is about the same size as yours. do a double light, not a triple.

If you do a mirror placed like this, you could have room for the outlet underneath,

you know what would be easier and look better? a mirror with backlit or built in lighting