In this picture, there's a man staring in to the water with longing and doesn't seem to notice the beautiful woman standing right next to him staring at him with longing in her eyes. This man is clearly Narcissus because in the myth it says in paragraph 435, "nor food no rest can draw him thence", and if that can't make him leave his reflection, then a girl certainly can't.  you can infer that this is Narcissus because he can't see the woman, only himself.