If I were guessing, from just those pictures, I would say that Daisy is a Greyhound (or some sort of sight hound) mix, based on her legs and head shape, I don't see any sort of pit breed in her, but then, I am not looking at her in 3D, or from all angles.
CoCo, maybe she has standard poodle, I just don't see it though, more likely a mix of some sort of spaniel, perhaps King Charles, with something else. She looks a lot like my one dog, Bear, except Bear is all black. She is also a total spazz, even after going on 4 years, she was 3 when we got her, so she should calm down any time now, and dumb as rocks. I don't have any idea what Bear is, but based on the Spaniels that I have know, she has the spazz and the dumb, the fur, and the drive.
These are the drawbacks with getting any dog where the history is uncertain.
My husband has declared that we aren't ever getting another dog, I say what does he know. Based on our experience, we've always gotten shelter dogs, and have hit on all except the very last one (Bear). The next time, I may just go for a well researched American type field lab, knowing the diseases that labs are prone to.
