In the original character design, Anna was supposed to have a Mr. Burns-style overbite. Trevor decided to make her more rat-like, and I liked the look, so we went with it.
Aldla changed a lot after college, and moving to Hollywood. She had almost a Hayley Mills thing going at this point. But she was always more willing to speak her mind than Ardra.
This took place around 1992. So Ardra would have been 12, and Aldla was 10. If they look a bit tall, they're not. Actually, Anna is very short.
And due to the fact that Ardra tends to be rather passive, the display of emotion (by her standards) shocked Anna into submission. Keep in mind that Ardra was raised in a prim-and-proper, wealthy household, so cursing or threats of violence weren't really what she was used to.