Nice idea but sadly I fear that this would take to much work.
It would be kinda nice if we got more scar or burn options for our skin. Like at the beginning your character has no scars and maybe after defeating Ifrit you can go to the hair npc and get yourself a nice burn mark in your face or on your body. Or even more scars all over your body. (All of this would be optional and removable)

Or give us items to glamour which are bloody bandages? So we can pretend that we are hurt?