Blue Ameraucana are solid blue. No silver or red should express at all. If that's a Blue Ameraucana, it's one of the most poorly bred I've ever seen. The coloring is pretty typical of Easter Eggers, though. Either the few hatcheries with Blue Ameraucana have really managed to screw up their...
From which hatchery? Unless a color/variety was specified, you were ordering Easter Eggers. Ameraucana always have a color/variety specified, and they usually cost a lot more than the average chick.
Your bird is a nonstandard color, which means it's an Easter Egger, regardless of it's source...
She's got red earlobes, so she should be a brown layer, but it doesn't look like she is mature enough for laying yet. The white eggs are likely coming from the Brabanter.
Fist one, mixed breed cockerel. Not a Legbar. Not a pullet.
#2 pullet
#3 red bird is a pullet. The other is a cockerel.
I can spot the boys because they have different shaped feathers on their backs. Males get 'saddle' feathers, they are those long, thin, pointed back feathers. Compare them to...