From all the children's books I read, none of them spoke to me as personally and profoundly as The Little Prince, by Antoine de Saint-Exupéry. Even though, come to think of it, I didn't even read it in my childhood, but later on in my 20s...
I debated a lot in my head what subject to represent in the image, and I finally decided to go with the most essential idea that the entire boy's adventure is centered around, that of LOVE. The Little prince, on his small planet, sitting on a chair and watching a beautiful sunset together with his loved one.
I leave you with the gift the fox gave the Little Prince, before they parted:
"Here is my secret. It is very simple: It is only with the heart that one can see clearly; what is essential is invisiblee to the eye."