I like very much pictures drawn by children. It seems to me, that if kids' fingers obey them, these pictures would turn out very cheerful. It is always possible to understand, that the young artist wished to draw and what is the most important in this picture for him/her. Probably not only the kid's the mood rises, when he/she draws, but also of those who looks at that picture.
Recently I have presented my friends' child a coloring-book so they told me that it was impossible to interrupt the little girl from the drawing!