We currently have a 60" vanity with overhead lights. Our bathroom is 5' x 10', and I read that I need 300 watts of light for that size bathroom. I'm sold on sconces for our remodel because of our aging eyesight. We'll have two sconces with one sink. I've looked at all kinds of mirror configurations, but what makes the most sense is to set the sconces into a large mirror so that the light is bounced around the room. Did you say in another post that your ceiling is only 7 1/2' tall? I'm not sure a chandelier would look so good. I think they're better in powder rooms and in spacious bathrooms. Instead, I would use an exhaust fan/light combination to put light and ventilation over the toilet and shower area. I wouldn't count on the vanity lights, door, and a decorative chandy to supply enough light for the other side of the room. You need light for cleaning the toilet and shower and if anyone reads while on the can.

Thought this beveled mirror was nice and if too narrow at 34” you can balance with a lamp to the side and layering. https://www.wayfair.com/decor-pillows/pdp/birch-lane-dole-traditional-beveled-accent-mirror-w004204731.html Have you considered hanging art instead, for a change and more contrast?

One thing to keep in mind if you're going with Theresa Peterson's recommendation is location of any power outlets, if you have any - need to make sure that they remain accessible. You can always hang the mirror(s) above them, but then the mirror(s) may be too high. I have that issue with my currently remodeled master (this is the "before" photo) - because of the power outlets, and because each mirror needs to be centered with its respective faucet, I cannot do wider mirrors (even though I have the space, theoretically):

@LH CO/Fl...good idea. Only design element is the trim detail with blunt cut edge and slight overhand (like in mirror mockup). The house is kind of minimal I guess, see great room pic from this a.m. (furniture on order). The furniture is pretty contemporary but not ornate - more moutain modern I guess.