Ah, Fran, it's been one of those weeks! And ya, I've been missing 1/2 the threads here these days, I sit down, take a quick peek at a couple threads then am off & running again. Probably have been missing lots of good pictures.
Lacey's pretty! I would go with a show halter with a silver bar noseband and silver ferrules/filigree beads on the cheeks. I've been trying out some different halters in different colors, and I still find the silver the nicest on the biggest variety of horses. With Lacey's color, she'd look sharp in silver!
Star Lake has some gorgeous halters but they're a little more expensive; Ozark Mountain also has some lovely ones, and I think there's a few that are a little bit less pricey, around $100 or so. Those are the cable ones. Ozark also has some nice rolled leather ones with the bar nose, but they're just not quite as fine as the cable style and they have the plain cheeks. I suspect Lacey may look the nicest in one of the cable ones.
Sizing can be a little tricky, especially with a young horse if you're buying the halter now & you want to be sure it will fit next year. Most of the sellers have good sizing guides for their halters, so you can take measurements & get the right size halter. Star Lake's halter sizes are a bit different from the BKM halters sold by Ozark Mtn. & other stores; Schneiders sells some nice Billy Royal Mini halters & they are sized the same as the BKM halters.