I don't know much about Seramas, but the pair in the first picture are laying, and they are supposed to be size A.
The girl (the white one) is supposed to be between an A and a B and is also supposed to be a Serama.
I am going to be in Bear Creek and Fuquay-Varina tomorrow, 12/2. If you want me to bring any of these birds, I can. Otherwise, I'm in Rocky Mount, Virginia -- don't know how far that is from you or if you travel.