Katrina was always intended to be one of the main cast, but I just never got around to introducing her until my current storyline (in which she'll play a major roll). And holy crap is that arm in the bottom right corner sample bad.

However, since I never drew her that often once I actually started
producing strips, her character design never evolved to match what I was doing with Andrew Creed or the others. Also, the shape of her face was too close to Andrew's and they ended up looking too similar. I recently set aside some time to bring her design up to date. I'm still fiddling with it, but I have a week or so until she shows up.

Since my strip's set in a school, eventually the characters will start looking older (well, once I get better at actually depicting age). At the right is an idea of what I might do with Katrina once Senior Year gets closer.