Both pullets, in my opinion. I think the first is a Starlight Green Egger or Whiting True Green, depending on the source hatchery. The black one looks like a pure Ameraucana to me, but I could be wrong. Might be an Easter egger or olive egger.
Looks like a dark shade of blue to me. I see no evidence of barring to call it blue cuckoo.
Breed is maybe blue Marans, Andalusian or some type of Easter egger.
Both are varieties of red sex links, and have variable coloring because they are hybrids. Some have a lot more white than others, and the red can be paler or darker. There's really no way to tell brands of red sex links apart.
It's not an Andalusian. You're right, the yellow legs exclude that breed. I think it's probably a Prairie Bluebell egger, and probably a pullet, but those hackle feathers are very long, so possibly a late developing cockerel. Time will tell.
It is a pullet, and I think you are right that it's some type of Easter egger. My guess is Starlight green egger as I have seen several of those that look just like yours.
It's difficult to tell comb type when they are so small, but I *think* this one has a pea comb. If it does, then probably an olive egger or Easter egger of some kind.
Probably a late blooming cockerel. But I wouldn't completely rule out that something else may be going on. Sometimes you get genetic anomalies where a chicken isn't 100% male or female. And very rarely one of the long tailed breeds will have a female with male type feathering at the saddle area...