Pennsylvania Station Subway Art [Detail 1]

A Bird's Life by Elizabeth Grajales (1997) [Detail 1]
as portrayed in tiles on the walls of the Pennsylvania Station platform for the NYC subway stop (1-2-3) at West 34th street. Even though the patterns remain identical, each detail is colored a little differently from the others.

Image: GrrlScientist 2008. [wallpaper size].