My Chosen Idea

I have decided to create a children's colouring book for my extended project, I will use Adobe Illustrator to create the images of objects/animals. I have bought a colouring in book to get some ideas. I will also create the front and back cover. I'm not sure whether to make the colouring book themed, or just random pictures. If I choose to do a themed colouring book, i could do all sorts, for example: animals, people, objects, places.