#1 Easter Egger (commonly mislabelled as Ameraucanas) Is there something on her feet? What are those white specks? Anyway, EE's don't have a breed standard because they're not an officially recognised breed. You can't show them.
They should lay green, brown, or blue eggs. Some have muffs, some don't. Some have green legs, some don't. They should have peacombs, and that weird, stripey, almost barring on their juvenile feathers seems to be pretty unique to them.
#2 Cuckoo Marans (and yes, Marans is both the singular and the plural, though you'll see it both ways. Weird, right?) Lightly feathered feet and cuckoo colouration. Leg color is usually pale, but can have a black wash (which is more common in pullets)Straight comb.
#3 EE again, and I really like this one. I think she's going to grow up to be a very pretty girl.
Hope this helps!