The red/white ones look like red sex links to me - these would be a mix of two common breeds, one that is red and one that is silver (white), such as a Rhode Island Red and a white Plymouth Rock. They should be good layers. These are examples of 'heavy' or 'large fowl' birds.
I can't guess the breed of the other one, but it does look like a bantam to me - in your pic showing all of them together the black/gold one is much smaller than the other girls. Old English Game is as good a guess as any from my perspective!