On Afro Samurai we worked with several outsourcing groups to build out the environments, I provided direction and feedback, and helped establish a process for working with these groups. Here is an example of some of the work created.
Here is an exerpt from a GDC presentation I gave with Danny Chan (Lead Engineer) about the look of Afro Samurai. You can download a compressed version of the entire presentation here. Special thanks to Paul Gardner for the additional support and storybook art.