Planning a Picture Book... and a Lesson in Making Kids Look the Right Age

I've been working on an illustrated picture book for a story called "When You're Older," written by my friend James Littlejohn. I've been sketching for months now, and here is a little sneak peek of the picture book in progress- a mini storyboard of the overall layout of the book.

I'm still trying to decide what to do for the cover. I'm thinking of maybe showing the boy standing next to his mom and dad, but all you can see of his parents is their legs... to show that he is really little. What do you guys think? Any cover ideas?

Lesson Learned: Little kids have huge foreheads! The lower you draw the eyes on the head, the younger your character will look. In my original sketches, my character looked about 9 or 10. Then, I made his body shorter and increased the size of his forehead, and voila... he turned into a 3 year old!