I hesitate to call this a formal reference sheet because in truth Gloria's character design is flexible and changes depending on how recently I've been influenced by another artist or the story I'm trying to tell at the moment, but this probably represents the best "base" design for her, and new design ideas would flow from here.

One big change up I've been trying recently is to give her more cat-like ears that are dark on the reverse side. I've had several people interpret her appearance as being tiger-like, and... I guess that's fair, though I've always felt she was just generically feline, so at least to that end the more triangular ears feel appropriate.

Interesting fact I just realized... Gloria is about 25 years old now since I first started drawing her.