I suggest you generate image and use inpaint to make different face expressions for each character.
Resolution for txt2img: 512x768/768x512
Preprocessor: none Model: segmentation.
Control mode: Test which one works better. Usually "My prompt is more important" works best.
1. The rights to reposted models belong to original creators.
2. Original creators should contact SeaArt.AI staff through official channels to claim their models. We are committed to protecting every creator's rights.