Here's an early concept illustration I've been working on for The World of Torn, an awesome Pathfinder campaign setting that you can check out (and should!) here: The Torn World Forums - The Main Gate
This draft diagram will accompany a dozen-page written document, also still in draft form, covering possible configurations for the two-moon system, including everything from basic orbital and tidal science to the effects of one prograde and one retrograde moon on tides and culture, how two moons affect perigean spring and neap ocean tides, albedo consequences for night-time illumination, and numerous other topics.