Oh wow your birds are stunning! Baby number 1 looks just like my Marli when she was young, but she is a yf2 so her yellow spread through her purple and muddied it as she molted her baby feathers, she is a pastel colour, either greywing or dilute I'm not sure which. What beautiful chicks! And the parents are gorgeous! I have never seen a budgie like the mother, awesome
Edit: I have tried editing to add a photo but can't, so I've put it in the gallery and hope the link works, it's a picture of Marli (top) and Marlow (bottom, the pied) in their adult plumage after Marli's yellow spread during her first adult molt, she was a beautiful bright lilac colour as a baby, and in person you can still see the violet factor clearly but most of it is muddied, looking at the photo I think she is a grey wing. I searched the net for a picture of a similar budgie, has amazed me to see your chick and how similar it looked to Marli as a chick thank you so much for sharing