Submitted in .swf format so I could have a spoiler-free thumbnail! I know there are people who haven't had a chance to finish Portal 2 yet.
This also means that I had to BS the category, because the Digital>Vector art category doesn't accept Flash files. :U
Anyway, this was one of the rare cases where I really wanted to take a sketch all the way to clean lines AND color! 100% Flash... and you can probably tell, haha.