Hard to tell with just comb shots and not body shots as well - but here's my take on them. They are still pretty young for sexing.
EE1. Pullet
EE2. Cockerel
EE3. Cockerel
EE4. Can't really tell from the picture, I'll say pullet based on coloring
EE5. Definitely a cockerel.
EE 6. I'll say cockerel
A bit early on the Ameraucana's, but they both look like pullets right now.