I love those peafowl! They are gorgeous! Oreo is adorable.
The speckled hen is a swedish flower. A landrace similar to the Icelandic, but from Sweden. They are commonly found in the speckeled patteren, and are supposed to look like a field of flowers, giving them the name swedish flower. They commonly have a crest. They are sold by a couple of major hatcheries, unlike Icelandics which are really rare.
What comb type does the black one have? She could be another swedish flower, which occasionally come in black, but she looks more like a polish mix. If she has a single comb, likely another swedish flower.