Photographing a child is the best thing. They don't mind about their looks and posing. They do what they want...they are natural. So basically almost no child looks bad in any photo. They just look like themselves. And being yourself is something we all strive for everyday as adults. We want so badly to be able to be ourselves... yet as a child it seems effortless and accepted by all. Combine the effortlessness of a child's charm with the most powerful of all forces, a mother's embrace. That's magic.
Photo Tip: If you are photographing in daylight with sunny skies, your best bet is to place your subject in "open shade". Trees don't make the best shades, as they let the light rays come through the leaves and make patches of extreme contrasted light on your subjects skin and clothing. A place like a porch with an awning is the best.