I was once asked if I'd like to draw an issue of the Dark Horse comic book series Xena: Warrior Princess. Unfortunately I had to have my drawings of Xena and Gabrielle approved by the actresses (Lucy Lawless & Renee O'Connor) who played them on the TV show.
While the Xena drawings went smoothly, at the time I was unable to produce a satisfying likeness of Gabrielle, so the project went no further.
Oh, the Gabrielle sketches? Let me check, they must be around here somewhere...