Great drawing I have to say, but I do not think she would have the wolf belt, because wolf belongs only to Geralt. But I can imagine such character in a game or book. Great work - I would like to see it in colours one day
As far as I know that wolf is the symbol of the wolf school. There are also other witcher schools. And every real witcher in the wolf school wear one of these amulets to detect magic and monsters. Also, in the game, when you kill barengar, you can retrieve his amulet.