Yeah, the Joker one, aside from an art syle I just don't care for, all but reeks of the stuff that made the Joker stop being "fun" during most of the 1990's and 00's.
And in terms of deconstructing him, it pales to nothing compared to the end of "Return of the Joker", where Terry taunts the Joker with just how NOT funny he is.
The Luthor one is just... random. Why Jimmy Olsen, someone Luthor I'm guessing either knows little about, nor still less cares. If he'd found himself as one of his own absurdly undre-dressed "secretaries" or something it might have had more resonance. Pretty art though