They're celebrating their 3 year blog-anniversary this month, so their dad has invited artists to create NEW pictures using Isaac, Grace & Lily's drawings for inspiration. They've created so much wonderful artwork over the years (more than 400 pictures!) - it was very hard to choose.
It's impossible to top what these kids have already done, but here are my versions. I still think the originals are better!
original drawing by Isaac (9 years old):