The silver laced one started growing head feathers first (although she is smaller) and she has more of them compared to the golden laced one who has a V-shape comb.
They are so different in size and plumage maturity(did they both hatch at the same time?) so I would say you have one of each. My guess is the silver is a male. They are so cute
I am going to guess that they are both males. I have an 8 week old gold laced and her crest has been smooth back the entire time it has grown in. I also have two Sultan hens and their crest too was a smooth laid back ball. My understanding is males have a rather messy irregular look.