Okay, here are several suggestions:
1: Ask a mod to move this to the Work In Progress board, where it belongs.
2: Add lights. There should be some form of natural light since its outside, and there should also be one or two artificial light sources.
3: Block off the edge of the world so the player can't see over it.
I will provide more suggestions once you add lights so I can see the area.
EDIT: You want a mod, trust me. This thread: http://forum.thegamecreators.com/?m=forum_view&t=163209&b=21
will provide you with all you need to know about mods. I recommend Fenix mod highly, as will many other members. As for voice, simply record yourself saying what you want to, then put in a story zone and use your voice file.