It's hard to tell from your pics. Can you post some straight on side shots of the birds standing naturallly? Stance and wing/tail carriage can play a big part in determining a breed.
She is so petite and friendly. I have another OEGB hen and she's the same way. Yeah!!!!! I had a silver duckwing cockeral last spring but lost him to raccoons.
Interested to see if her coloring changes as she gets older. Thanks!!!