Someone on Pixiv requested me to make some illustrations of Juri, so I put together a LoRA for her.
Trained on 37 images, 10 repeats. 16th epoch was pretty good but it missed some of her hair and dress features, so I picked 18th epoch as the optimum. If there are errors in generation you can try to lower the weight to 0.8
The examples I show all use a weight of 1.0