Comprehension Program

I have some 30 simple line drawings that I would like to have reproduced, with minor changes, for a Comprehension program for children with learning difficulties. While many of these pictures have shading, I would prefer them to be line drawings although some of them may need some shading. The drawings are in groups of 4 or 5 where the background remains the same while foreground images are different - each group tells a story. An example is attached. These pictures are merely examples of what I'm after and there would be changes made to suit my needs.