Amy,
Thanks for posting the link. I have referred to the website many times too. The other one I go to is http://www.growminds.com/TheArts/GTinArt.htm.

The 12 year painting on the website you linked seems pretty complex. For a nine year old to be drawing like that is pretty amazing!

DD can draw things from one angle so the things that are on the other side are hidden or not seen at all. She was doing that before she was three and I recently read that that ability does not start until 6 or 7.