Isn't genetics fun!?
It's not uncommon to have babies that are all different, and don't look like mom or dad. There are so many mutations that are sex linked, or in split form, or even in a double factor form that can make each baby look completely different.
If you can post pictures of mom and dad, and all the babies, we can help determine the mutations and the genders too.
I currently have a clutch of Engish Budgies, and each one of them is different too!