They’ve grown so beautiful!

I love the roo’s name.
My sebright hen took a full year to lay. I'm sure your’s will lay too, but it may take time. They’re definitely both pullets.
As for the fighting, it doesn’t look like they’re missing any feathers on their heads and I don’t see scabs on their combs, so I’d say it isn’t something you have to worry about. If they were constantly drawing blood and plucking out each other’s feathers, then it might be an issue. My d’uccle bullies my sebright by pecking her head or neck any time she comes near, but, since my sebright isn’t stressed or injured, it isn’t a problem. Though I make sure that my sebright gets a fair amount of mealworms.