The original design of Elena's adult form was just, meh & generic for me, hence the reason for redesigning her. It took me awhile to finalizing her adult design because I keep thinking on how her hair look like as she grew older and whether or not she still wears the same loincloth.So the finalized design for her adult look is more messier hair and the same loincloth she wears when she was younger, thus making it barely fits her.
Personality-wise, she still the same wild, jungle girl as she was when she was younger.She has grown stronger, more athletic and to a certain degree, resistance to Kaa's hypnotic gaze ( of course, Kaa has his "subtle" little ways on dealing with it)