Concept: “Belsnickel is cursed to walk the cold yuletide roads for butchering and stewing three naughty boys. He must judge those he encounters as naughty or as nice.”
Content: A judgmental, switch-wielding, candy-tossing scvm.
Writing: Poetically miserable folklore for the dying world. 
Art/design: A wretched bearded man with judging eyes, tired shoulders, and a switch in hand.
Usability: Don't rush for the candy. Trust me.