I just did this illustration for an interesting article on addiction in The Uniter. The Uniter is the University of Winnipeg's Weekly Urban Journal. Here's a link to the article online: http://uniter.ca/view/7218/
The illustration concept came from that of The Four Horsemen of Addiction: Terror, Bewilderment, Frustration and Despair. I decided to focus on the horses themselves, thinking of the 'animal' side to addiction.