Dead Space Environment - The Loop

Fan art redesign thing for Brainstorm Challenge group on FB.
Different variations on the interior of a ring like structure in which Isaac must pass through in zero gravity to continue his mission.
The name of the game would be to manage your air supply, refilling at oxygen points along the way, where available of course.
However once you find out that something is following you, and doors start locking behind you, and the air supply station you thought was working isnt working anymore, things get hairy very quickly.