Can you help me figure out what type of chicken I have?

Good morning, this is Mary I was wondering if any one can tell me what type of chicken he is. I have no clue they are mixed chickens I know but I am not sure mixed with what. The guy said that he gave me white leg horns and bramahs. The white leg horn(Winifred) is clearly a mix because he had brown and black speckled through out. Mary has hints of green as well as the brown and black you see in the pictures. Any guesses would Be much appreciated!!