Heath looked totally different, i will give you that. But the essentials were there. His voice was good, his laugh was perfect. The outfit colors were as they were supposed to be, the green hair, the make up colors, everything was there in a altered way, but it hit pretty much all the marks. As been said before, he hit it spot on as the joker while you haven't even seen his face. Just his voice and the way he talks. I must admit, Jared Leto for little voice we have, is spot on. His clothes, i don't know yet, because he has pretty much only been shown without a shirt on, god knows why, because i cannot remember ever seeing the joker not fully dressed.
Now Harley has always been, red and black, or red and dark blue. Not baby blue and pink. ALL variations of her have that annoying accent and high pitched voice, which immediately let's you know she is quite a few sadwiches short of a picnick. She better throw in some Puddin's or call the joker Mistah J. Just to get at least a bit of shown effort of playing a big fan favourite in the DC universe. She doesn't need the big mallet or the jester hat, just hit the checkmarks that define a character, in Harley's case, it's the voice and the colors.
It almost looks like they are trying too hard, but look at the wrong stuff. Leto's joker is almost trying too hard to get out of Heath Ledger's shadow.
