illustration for children book

At this moment i am writeing a book for children more for fun then for publishing but when it is good enough who knows someday who can make 8-10 drawings for this book ( when published your name wil be as artist in it) drawings are about 2 boys 12 year old that get a adventure so designer must be able to draw children, ( same face on difrent drawings ) a ferrari F10 and some other but above most important so can you draw good :-) maybe in a published book make good prize and show some work you did allready