I worked for about 5 years (from sometime in highschool, on into college) for a small publishing company doing illustrations for textbooks. Several of the pieces I did during my stint as an inexperienced in-house illustrator were rejected.
Some were rejected because they said I was making fun of X, Y, or Z. Other's because the ones requesting the illustration didn't understand what they were actually asking for, so when the idea was illustrated, they were aghast. And some were rejected because I put hair on the dog.
I remember I had to do this one over and removed the wig from the little Juliet dog. I'm can't remember what the final print version looked like.
All I remember is I liked the curls on the girl and that's the version I kept for myself.