Using adetailerfootyolov8x.pt as a starting point made by https://civitai.com/user/Monet_Einsley, I trained this model. It uses ReignSolesLora training dataset, so the model is highly focused on detecting the soles of the feet. It works incredibly well with soles generated from said Lora, but can also detect the soles of a woman's feet in other anime style images.
This is a BBOX type model made to work with Adetailer, ComfyUI (needs a compatible workflow), or some other Ultralytics program. Unfortunately I could not find a way to convert it to .safetensors, so the .pt file is the best I can do.
I recommend using it with a confidence threshold of .7 or lower if you find it isn't recognizing the soles in your image.