Hope this can help someone learning as well...

First I'm a complete noob at any of this... I'm sure someone with a lot more experience can provide better. Also sorry for the crazy small text... but I thought I would upload this incase it can help someone else.

General ComfyUI Tutorial: Youtube

Face Detailer Tutorial: Face Detailer ComfyUI Workflow/Tutorial

Hand Detailer I used: Reddit Enlarged image