Yes you got lucky. Look up living River Farms he has a video that shows a white blue head hen. No one else has them. All Blue spots start white and the blue drakes throw all the colors
The one on the right is a blue hen. I have a blue hen that is all brown and i had to do a lot of research to find the lighter colored one but it is on the living River Farms video.
I am hoping the one on the back right is a brown hen as adults they look identical to a Pintail hen. You can tell your birds are spots they have shorter necks and bills and they have the hen Pintail type tail feathers. Please keep sending pictures as they get bigger too I'm tracking all the colors my blue is throwing.