If you have subjects (either photos or live models) you want to paint that are between the ages of 3 and puberty, this video will give you insight into specific features to look for that will capture their youthful appearance.
The Illuminations! Series addresses many of the basic elements of painting that many beginning painters fail to learn because they may not have access to good instructive art sources. Collect the entire series to acquire a good foundation in painting principles, regardless of your chosen medium.