Everyone at Crystal works together and shares content. I was only one of many artists to work on these levels, including Zach Perez, Joshua Bapst, Caleb Strauss, Steven Mortensen, Mark Wahlquist, Matt Kronenberg, and Chris Cunningham.
The bridge was a huge undertaking and wouldn't have been possible if not for the extreme flexibility of the Design and Art departments on the Singleplayer team.
Each artist had an area with a character assigned to them. I was in charge of the hulk section.