Top bird looks like a rose comb and the rest are varying kinds of pea combs[they can express differently depending on other genetics]. Second almost looks like a walnut comb[rose/pea combo] but itis more likely to be pea x single, which results in a weakly expressed pea comb.
EE and for the top bird Wyandotte blood, probably.
Your rooster in the second picture is showing a very fine example of a "modified pea" comb. He's a crossbred bird with a pea comb in his ancestry. Same with your pullet. Birds with pea combs include Ameraucana, Cornish, Brahma, and Buckeye.
On non-bearded birds the pea comb is easy to recognize because the birds will have much smaller wattles than normal. Pea combs repress wattle growth as well as comb growth, that is why peacombed EEs generally have very tiny wattles even if they are non-bearded [beards repress wattles, too, that is why the top rosecombed bird also has tiny wattles.] All of this also counts for true walnut combs, because they are a combination of pea and rose comb genetics.
On bearded birds, pea comb genetics can be identified from the presence of a 'breast ridge', which is just a fancy name for a small strip of thickened skin [looking like a seam or healed scar] on the keel/breast bone area.