I made these images with ComfyUI. They're fairly close to how I pictured the characters, so I'm sharing them for everyone to see.
The protagonist. This one feels relatively close to what I had in mind.
Katie, the female lead. Her tiny fists are the cutest.
Annie. She isn't too different from how I imagined her.
Olivia. I originally wanted to make a Three-Headed Hound, but the image was too big and hard to manage, so I went with a puppy for now.
Erin the maid. Yes, she's that very traditional sort of maid. Maybe that will change later.
The Holy Maiden. I made lots of images of her, but there weren't many I was happy with. This one is fairly close to what I had in mind, though, so I'm sharing it for now.
Alice, one of the three little ones at home. Yes, the Alice everyone knows.
Princess Sophia, another of the three little ones. She looks so tiny and easy to bully. Will she grow up someday?
Kia went home to visit her grandpa, so she hasn't had any scenes lately (laughs). Here's an image of her.
If there's anyone else you'd like to see an image of, let me know in the comments.