Bad hair day...if you look at the shots of her on the ledge before she jumps, her hair is blonde with red streaks (and straight), then blonde with a little red at the roots, back to red streaks with almost dreads. After she lands in the cab her hair is straight but with red streaks. It drove me nuts about the 'quick healing cut' until I noticed it is a read streak of hair.
Maybe I'm just being anal, but if she's the "supreme being" and so capable of healing herself, how come she can't heal herself when she was "beaten" by the aliens who were trying to find the stones in the diva's room?
I think she is a quick healer. but for the fact of the aliens who get shot down at the beginning may they were hurt too bad to be able to heal themselves. I don't know about the part where Zorg randomly she at the ceiling so don't ask me