I drew this on Spirit Day last year. I really liked this one so I thought I'd re-upload it.
Spirit Day was an event that took place on the 20th of October 2010. It was a day to honor the LGBT youth who committed suicide in the recent months/weeks due to bullying. People wore purple to show their support.
Thats why I drew the whole picture in purple.
Here's more information on Spirit Day if you're interested -> [link]