Something about lighter eyes in juxtaposition to a face in muted lighting, makes the character more preternatural and creepy. I dunno, but it just adds this predatory quality to it. I saw this page from a comic (I forgot which - Death of the Family, maybe) where Bruce is talking about how the human pupil can dilate and constrict according to how you feel about the person youre looking at. And he posits that since the Jokers has these eyes that are completely constricted all the time, he (Joker) must hate everything he sees, and because of it, its a true indication of how evil he must really be. So ever since reading that, I measure just how well an artist has interpreted the Joker in how they draw his eyes. In any case, well done lol totally love it