Q1: Did Garth Graham work directly for Valve Corporation on Portal?
A1: No. Garth Graham was an independent cartoonist and the creator of the webcomic Comedity. His illustration was an unofficial tribute created as part of the grassroots community response following the game's release in October 2007.
Q2: Why did this specific Chell illustration lose its original artist attribution?
A2: Between 2008 and 2015, the artwork circulated heavily across message boards, wallpaper repositories, and early image-sharing networks. Automated scrapers and casual users regularly cropped off signatures or downsampled files, which stripped out identifying metadata.
Q3: How does the artwork differ from Chell's Portal 2 design?
A3: Graham created the image around the original 2007 game. As a result, Chell wears her classic orange Aperture Science jumpsuit tied around her waist with the spring-based advanced knee replacements, rather than the updated long fall boots and white jumpsuit redesign introduced in 2011's Portal 2.