I'm not good at it but my aunt who was an art teacher is. She knows everything about drawings and development. She lives far away though. And maybe it's only for little kids, she was an elementary school teacher.

Personally I think we just draw what we feel. but as a kid I used to draw tornados all the time. Tornados destroying things. She said the tornado symbolized something but I can't remember. My cousin once drew a picture of our family and everyone had smiles except her dad, and he had a big square mouth with lots of teeth. My aunt said that meant that she sees him as an angry person who causes conflict. And he is an angry person who causes conflict. My cousin was only 5 at the time she drew it.