Drawings for kids story book for iPad

Making a story book for kids, for iPad. Typical kids story like "Snow White" Little Red Ridding Hood", etc. What I need are the drawings, the characters. Let me try to explain. Lets think of page one of a the little red riding hood. I'll have the text of the story "Once upon a time there was a little girl called bla bla bla, she lived with her mother. One day her mother asked her to take some cake to her grandmother's etc..." And one this page I'd like to have maybe a drawing of the mother giving the cake to the daughter, or something that represents the text in that page. The book will be target for kids from 3 to 6 or something like that. So need attractive drawings, but simple. Like the face doesn't have to have much detail. I need a price per page. Thank you