This work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 3.0 Unported License.
This means you are free to use anything from this site for noncommercial purposes (book reports, personal websites, stuff like that) as long as you credit bluebison.net with a comment or link.
You are welcome to donate via Paypal so I can get more colored pencils. You can use these images for some commercial uses as well; contact me for pricing.
Feel free to email me if you use something; I enjoy seeing my drawings out in the wild.