I've never really been into superheroes, but one of my highschool mates was a huge Batman fanboy and from what I remember, wasn't Joker's origin story, that he was basically your regular thug and then Batman kicked him into a vat of acid or something, which coloured Joker's skin white, because that's how severe chemical burns work, obviously, and that new clownish look triggered a personality change, like with Scarface? So if my memory serves me well and the whole thing didn't get smacked around with a retcon stick, he's not quite pale enough. Now, given that, again, according to the origin story, which may no longer (or have never been) accurate, Joker apparently has issues with his own skin, I guess giving him a tat fetish WOULD make a whole lot of sense, but focusing them on plain, boring black-and white text is sort of stupid, I'd rather expect colourful, circus-themed acid-trippish (pun intended) imagery with lots of excessive creepy cheer, like maybe circus animals witch cheshire cat smiles eating up their trainers alive, the works.
Ah well, I guess we just don't get the new joker. And neither does his mum.