SD 1.5 Face upscale workflow v1.0
SD 1.5 Standard Workflows
DownloadSD 1.5 Face upscale workflow v1.0
I've tested on Realistic and semi-realistic/anime and it works on them. ComfyUI will download a model for CLIPSeg masking node that detects the face when you first queue a prompt.
Just follow the instruction in the workflow