what breed/gender are these?

[ErnieGR530]

My parents bought them from a lady they work with and we have no idea what they are. I think the one with the crest is the rooster? or am I mistaken? and are these serama?

 

[chickenmaniac]

look like a serama pair

 

[ErnieGR530]

Would you happen to know which one is the rooster and hen?

 

[chickenmaniac]

on the second picture the one in front is a roo and the one in back is the hen