Generally the closer feathering like the games is more dominant to the loose fluffy feathering of the cochin/pekin. They should have white skin, single combs, and those partially feathered legs. When you breed them together you should get more like them for the most part with some clean legs popping out. As for color of those chicks you should get atleast half cuckoo from them since the male is cuckoo and those pullets are black