I used the picture by Warrenlouw shown here: warrenlouw.deviantart.com/art/… It took me days but I finally ended up with this. It's not my neatest job but it is the most detailed and that made it a lot harder, not to mention the reference picture was digital art and I had no idea how to make a similar texture with colored pencils. I think this picture is awesome and I wish I did a better job with my dad's camera the short time I was able to use it because it's too dark.