I was finally able to check the site to find out who the other Governor General award nominees were for children's illustration. Red Wagon, written and illustrated by Renata Liwska is also nominated! Renata's books are so beautiful and Red Wagon is especially creative in the way that she's combined the pictures with the text. Good luck Renata!
Every time I buy one of Renata's books for myself, I end up giving it away to a child I know (they make really great gifts), so I'm unable to provide any photos of the actual book. But check out Renata's website for a peak inside of Red Wagon, a lovely and imaginative book.