I had Wheaten Ameraucana cocks that looked like that at a young age, they definitely got more colorful as they got older. Might be too flashy/gold for what you're looking for, but I agree that he's one to keep an eye on.
I had one or two do that before. Eventually the casing kind of rubs off and the feathers spread out. You might be able to very gently press and rub them between your fingers and the sheath will sort of disintegrate under the pressure.
This is the kind of dark and glossy I mean. See the "cape" of dark red feathers? You should be starting to see those on Teddy's wings if she was a boy.
They would be a dark, mahogany red. Her coloration is female. The color black in chickens should be glossy and green in the light on a healthy bird, regardless of sex.
Your OE look to be pullets. The GLW has a suspiciously red comb for only 7 weeks, but that isn't a dead giveaway unless it really pops and gets bright in the next couple of weeks. I'm leaning cockerel but it isn't a done deal. I can't tell on the SLW. Assume it's a pullet until it either crows...
Hen/Roo game has a lot of rules. There are certain traits that cockerels will have at prepubescent ages that pullets are less likely to have (large red combs and wattles, namely), and there are certain colorations that only females can have that males never ever will (look up silver duckwing...
If they are Prairie Bluebell Eggers then they are cockerels. That is a sex-linked cross with barred males and solid females. I can't tell you if that is actually what they are though, but the color looks about right.
They're all being made into soup if there isn't a lot of meat on em. If there is, they'll be portioned out into quarters and breasts and used in crock pot meals. No matter the age, they will be cooked long and slow.
I might have to process them closer to 10 weeks than 16. I've butchered 16 wk old cockerels before and they've already entered their gangly teenage phase -- all growth spurt and no meat. I'll try a batch at 12 weeks and 20 weeks and see how it goes.