On his Facebook page, Usagi Yojimbo creator Stan Sakai offers a glimpse into his process, showing the evolution of a single panel from rough sketch to final inks.

Sakai's historical fantasy, which celebrated its 30th anniversary this year, continues next month with the conclusion of Usagi Yojimo: Senso, the six-issue miniseries with a War of the Worlds-like twist.

See the full panel process on Sakai's Facebook page.