The Original Cheetah Girls
These are the models who portrayed The Cheetah Girls on the covers of the books:
http://www.cheetahrama.com/images/cheetah_girls_07.jpg
Top row, from L to R: Galleria, Author Deborah Gregory, Dorinda, Chanel
Bottom row, from L to R: Aquanette, Anginette
Deborah Gregory says she hand-picked these girls, so this is her vision of how they are supposed to look like. Interesting that the actresses who were chosen to play the roles look nothing like them (And there are four Cheetah Girls in the movies instead of five.)