I just finished a great project for OxPARC making about a million illustrations for their website. OxPARC is an NHS centre that treats rheumatoid conditions (arthritis, basically) in young people. I worked with their staff, the patients and the patient's parents to develop a cast of kids and teens to populate near every page of the site. They're a diverse bunch, as you might expect, and every one of them has a pet.
There are more illustrations up on my portfolio site, or you can see the full set as nature intended by clicking through the OxPARC site.