Illustrations

Information for the business: Spanish learning.
Design details: Pencil drawings for a book set in Spain. Although it is a book for adults learning Spanish the illustrations can be playful and clear.
The url I have attached is an idea of the bold/happy/smiling illustrations I like but the detail of the fur of the dog, for example, would not be necessary.
Target audience: 40+
Ideas for the visual style: Bold, strong pencil images
Things to avoid: Fuss and too much detail.
Preferred colors: black and white
Urls to draw inspiration from: http://www.petrab.co.uk/
Where the design will be used: book
Extra notes: I would like 7 illustrations for the first book. I have photos for some of the ideas that could be loosely copied although not essential.