Sexing cream legbar mixes

[ArcticBark]

I’d appreciate your expert view on whether sex of these two chicks. They’re just over 6 weeks.
Also, the rooster in the coop where these came from is a cream legbar; the hens are double-laced barnevelders and copper marans. Any guesses on the mum?

 

[The Moonshiner]

Yellow legs would mean the barnevelders is.
White legs would mean the marans is.