Thanks for the video, this is very helpful !
I no longer think that dad is a green series bird. He's a SF Yellow Face II which is making his blue feathers turn that beautiful green colour.
The pure white chick is an Albino and this means that dad is split for that mutation. This also means that this chick is female, since INO is a sex linked gene.
The pure yellow one is also INO, but has inherited the Yellowface gene from dad. This chick is also female.
The light blue chick is a Sky Blue Opaline
The darker chick is Cobalt Violet Opaline.
Since both mom and dad are visual opalines, the two blue chicks can be male or female (Opaline is another sex linked gene).