Stephen Chang worked on both Star Wars: The Force Unleashed and The Force Unleashed II, and he's posted some pretty insane concept art over at his site, which Concept Art World collected into one gallery. Including Yoda on Dagobah, the Death Star under construction, and the Secret Apprentice wreaking havoc.

Check out a few of our favorites below, and the rest at the links. [Stevo's Kit, via Concept Art World]