This a workflow to fix hands. It somewhat works.
How to install
Install Impact Pack custom nodes;
Install ControlNet-aux custom nodes;
Download hand_yolo_8s model and put it in "\ComfyUI\models\ultralytics\bbox";
Download Depth ControlNet (SD1.5) or Depth ControlNet (SDXL) model. NOT the HandRefiner model made specially for it. Put it in "ComfyUI\model\controlnet\"
Download bad-hands-5 embedding and put it in "\ComfyUI\models\embeddings";
Notes
The SD model used is XenoGasm, because it's semi-realistic and OK with hands. You can try to use the model you made the image with.
Using SDXL model is OK, but select matching ControlNet. Embedding will be ignored.
It's not magic. Workflow is just inpaint, and it will not change the color distribution. So, it's hard to get back missing finger, or get rid of extra one.It's now, officially, magic.