What breeds are these?

[Sara Tarazi]

I think these three on the branch are mix breeds but not sure what. I think the Orange may be a buff Orpington copper marans mix. She lays a shiny dark brown egg and handsome feathers on her legs. The one I'm front on the first pic I thought was a welsumer but she lays a cream egg. The grey one lays a matte medium brown sometimes spotted egg.