Here are some illustrations from Callan’s Beginner Essentials, done by Mark Perrault:
Mark is available for further illustration work. You can contact him through his site: http://www.mark-media.biz/
Below is a page from the Break In story in Thematic Jigsaws, depicting what was stolen, illustrated by Mike Huang.
Here below is a page from the Mark’s Lunch story in Contemporary Jigsaws, depicting various food items, illustrated by Joseph Laquerre.
Below is an image from Callan’s Conversational Surveys by Hamish McDonald. You can reach him here: firstname.lastname@example.org