Thank you so much everyone for your comments. I was leaning towards the first or second fixture because they have halogen lighting, and I read that halogen lighting is best for the bathroom. However, I've been hesitant because I'm not crazy about the style. Those are out. Now it's between the third and fourth fixtures. I'm going for a more contemporary look in the bathroom, so I prefer the style of the fourth fixture. Can polished brass be contemporary? The downside is that I would have to get it in polished brass to go with the rest of my bathroom, and I think the brass takes away from the contemporary look. Would chrome look okay? My shower door and tub fixtures are all polished brass, but the sink faucet and cabinet knobs are two toned brass and chrome. The sink and tub are about 8 inches apart. I like the third fixture because it is two-toned, but the look is a bit traditional. Athensmomof3 (love that name), my medicine cabinet is directly above the sink. I've been looking at make-up mirrors. It's too late to get one that's hardwired. I've seen a lighted mirror that plugs in, and you can remove the cord from the mirror when it's not in use. I might get that one.

You have a dropped ceiling in this area because, as you can see in the photo, it accommodates a duct for HVAC or an exhaust fan. Your current fixture may be surface-mounted because of the duct. You won't know if there is room for recessed cans until the ceiling is opened, or you look down from the attic if there is attic space above this room. I would run your mirror from corner to corner, install sconces through the mirror and get rid of the overhead lights. I doubt you need them. The lights in front of the mirror will provide double the light.

the first one is better than the second one, but if i was going to mix metals with nickel, it would be bronze not brass

This bathroom is small enough that I'm not sure it actually meets modern code (e.g., 24" of clearance in front of toilet bowl), so don't change anything big. I'd take down all the tile, if possible and just put tile on the floor (and drywall on the walls). Then a new sink -- maybe a modern wall-hugger rather than trying to squeeze in a vanity -- and paint everything light and bright, with lots of good lights too. I'd follow the stained glass for accents, say gold and pale pink, but really if you can find some art that you like, that's a better guide too. Here are a few ideas: Have fun, and good luck!