Ameracauna breed standard have slate legs- yours have pink. So would they not be more of an Easter egger that have all the bells and whistles of true traits other than the legs?
I have a blue ameracauna roo covered my Russian orlof hen! Got a beautiful cockerel out of them! Pictures of all three! He was a deep charcoal when hatched and boy did he color out! Not sure where his high comb came from (thinking hen isn’t as pure bred as we thought, but oh well beautiful boy...