Well it looks like in this most recent push that Jigsaw was inspired by Star Wars a bit. The old rust walls compacting in to crush the garbage that happens to be in between them. I know Lucas didn't coin this, but it definitely pops into mind first when seeing these screen captures. Including what looks like a broken plank of wood to keep the walls apart. Maybe I am just stretching things in my head though but it works.

In any instance, it looks to have received a bit of a graphics improvement over the first Saw game. Mainly in the character model departments. The environments still look a little too dark for any real appreciation. But I guess that just adds to the eeriness of the game.