Sophie,

My boy's name is Orien, Rien for short, GRA-Wind's Midnight Warrior, CGC for long.
And if your breeder is willing to keep the dogs at her house and co-own with you, then you can show them in juniors (as long as you're listed as co-owner). And if she doesn't want to co-own with you, you can show her dogs in breed if she lets you even if they live with her.