I raise laying hens, so I am not overly familiar with the Bantam breeds or ornamentals, but I do know your 2nd one, the smaller golden one, is definitely NOT a Gold Laced Wyandotte. I've had those (great layers btw), and yours does not look anything like the ones I've had as a chick.
It might be an Easter Egger like the one in my hand in my Avatar, or an Easter Egger bantam, but it doesn't have greenish/slate colored legs nor any muff or beard. However, Easter Eggers are mutts with Ameraucana blood from one side or the other, so they can also have yellow legs or I suppose beige; and some do not have any muffs or beards.
Wing pattern is beautiful already, and very unique which appears to inexperienced me like a game bird or bantam type.
As the developing chicks can vary so much as they develop until they fully feather out to their breed, I often have an easier time going from what the day old chick looks like (as that is breed specific) then watching for patterns until they fully feather in and you can really see what they've become. Here are a couple of sites that help with that
http://www.cacklehatchery.com/default.html Cackle Hatchery has some really nice videos so you can see the day old chicks in action
This is a good chart for a number of breeds of young chicks (before they feather in):
https://www.esteshatchery.com/baby-chick-pictures.html
One more thought on health. I a
gree watch out for dust. If they are generally healthy with only very mild respiratory symptoms, look for an environmental element. I presume you do NOT have them on cedar chips as that is very unhealthy for birds. Some raisers don't like pine shavings, and if you use them, you should have plenty of ventilation. (I've raised lots of chicks on pine shavings and have had no problems, but they are outdoors in coops so have plenty of ventilation).
If all you get is "sniffles" with rasping sound it could be Infectious Bronchitis (which my flock just had) or Newcastles disease comes to mind...I think with Newcastle they have bubbles in the nose?? If you see more jerky movements, then it could be dreaded Mareks or something else that has hit the nervous system. But lack of sufficient vitamins can also cause jerky movements. If you have them on medicated chick starter, the medication inhibits vitamin B to starve the coccidia bacteria, and I have had problems with chicks getting deficient in Vitamin B with medicated feed...so I think it is always a good idea to supplement with the chick vitamin/electrolyte for a time as chicks, especially after any stresses such as moving to a new home.
My thoughts...for what they are worth.
Have fun with your new feathered friends....WARNING...chickens can become addicting (having started with ONLY 4 and now at 21!)
Lady of McCamley