These screenshots are from the level I'd be placing the camera at for the overland map.
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This is the area behind the Nether Mountains. I've made it into a kind of plains/foothills mix so that it blends in really well, it's actually a combination of three grass textures, and the mountains texture along with a little orange/brown color tint to give it a definite autumn look. I haven't placed any real placables there and may not, because it does really achieve it's purpose as is.
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Finally decided to post a shot with the actual tree canopy over the top of the moonwoods. This is the area just to the west of the Mouth of Song. There will also be a little grove there in that area called the "Grove of Fangs" an area in eternal darkness where the enemies of the Mouth of Song dwell. While you are attempting to find clues to locate Claw Hollow, this is one of the areas you can find them.
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Last but not least a shot from inside the Silverymoon pass. The tower is a guard tower that protects the pass and will be a stopover allowing safe rest as you travel through the pass. In some of the later stages you will come here to find the person who can help you ascend to the top of the Nether Mountains and find the ancient Tomb of Dekan Thar to further your quest to find the remaining fragments of the Asberdies Stones.
Well that should give a good update for now.