I didn't like her headress, but I liked other aspects of her design.  Cara Delevingne did a decent job.  I think her moments as June Moon were some of the best acted of the movie, in terms of emotional resonance.  I didn't particularly love Viola Davis's character, and I think she was the victim of a lot of that cliche dialogue, but she really did a great job with what she was given.  Will Smith did a good job, I'm so happy he's in something again, it feels like he's been under the radar lately.  Race bending characters is always an unpredictable move, I've seen instances where everyone's happy with the choice, and other instances where everyone goes batshit.  I don't know how I feel about Jared Leto.  I really have no basis on which to judge his interpretation, except against Heath Ledger, and it's not fair to compare them when they came from different interpretations and movies with massively different tones.  He certainly made me uncomfortable, which I guess is good?  Kinda liked how he and Harley interacted?  But, based on my very limited understanding of the Joker, he came across more like a pimp and a mafia head than I thought he was supposed to be.  And there was too much logic to him - like, he went about what he needed to get done in a chaotic fashion, but there was an organized overarching plan to the things he did.  In my uneducated interpretation.

ooh what's he gonna do, type at me?

Hah, nice.  I shall continue as scheduled, then.  I do mean ever, because when they become vampires, they stop aging, most of their organs don't really work anymore, the cells are dead.  If they were to get cut (and it'd likely be from another vampire or else some pretty powerful force), they're not going to bleed, but the cells aren't going to grow and heal the wounds.  If the cells in their bodies are frozen to the point of not aging, they'll be frozen to not heal and regenerate as well.

We all knew this heartbreak was coming.  And you got it right the first time.