This woman--well, woman was perhaps a generous title; girl really-- is at once unremarkable in appearance and yet somehow familiar.  You can't help but feel that you've seen that face before.  In an illustration, maybe?  Surely not.  At any rate, the most interesting thing about her is surely not her face but rather the wicked-looking polearm she carries with her.  Maybe you've misjudged the young lady.  Young she may be, but she holds the weapon as if she knows how to inflict some damage with it.