Well first, I said " in this panel". I was specifically referring to the incorrect assumption in this, original version of Raven, that her emotions impacted her age. That is not what was going on with original Raven. Trigon' s influence over her corrupted her, basically slowly making her evil-- and that evil reflected in her personal appearance. Think of Regan in The Exorcist.
Regarding " exhibit C"..... That's a different Raven. Supposed to be her soul put into a you ger body ( barf) but Raven was one of the older New Teen Titans. 18. Gar was the youngest at 16. And by the time she had finally defeated Trigon, gone evil again ( ugh) been stripped of her body, become a golden spirit, she had to at least have been 20. So " Raven" worrying about not sounding like a 16 year old girl doesn't make sense. (1) when her soul was attached to that 16 year old body, Raven was about 20, and (2) Raven never, ever sounded like a normal 16 year old girl....lol
I never said her emotions didn't impact her. She had to keep her emotions on check, lest Trigon would take her over. But her emotions didn't impact her " age" Her emotions facilitated Trigon' s corruption, and the more she was corrupted by his influence, the more her body reflected that corruption. Four eyes and red skin aren't due to age. That's the evil of Trigon.