http://www.dakkadakka.com/dakkaforum/posts/list/8.page JForum - http://www.jforum.net http://www.dakkadakka.com/dakkaforum/posts/preList/576779/6488114.page http://www.dakkadakka.com/dakkaforum/posts/preList/576779/6488114.page GMT http://www.dakkadakka.com/dakkaforum/posts/preList/576779/6489219.page http://www.dakkadakka.com/dakkaforum/posts/preList/576779/6489219.page GMT http://www.dakkadakka.com/dakkaforum/posts/preList/576779/6489275.page http://www.dakkadakka.com/dakkaforum/posts/preList/576779/6489275.page GMT .
Here's an amazing jungle gaming board for inspiration; http://antimatter-games.com/kick/Jungle-Battleboards-1.jpg

I'd probably do your sand base in a combination of browns moving up to tans (like above you could use spray cans for the most part) and throw splotches of moss (and other drybrushed) greens scattered around here and there for flavor (either just paint or actual flock, but I'd probably go with paint just for durability).

Then of course you want a bunch of scatter terrain to give it foliage.
]]> http://www.dakkadakka.com/dakkaforum/posts/preList/576779/6489314.page http://www.dakkadakka.com/dakkaforum/posts/preList/576779/6489314.page GMT http://www.dakkadakka.com/dakkaforum/posts/preList/576779/6489557.page http://www.dakkadakka.com/dakkaforum/posts/preList/576779/6489557.page GMT http://www.dakkadakka.com/dakkaforum/posts/preList/576779/6489634.page http://www.dakkadakka.com/dakkaforum/posts/preList/576779/6489634.page GMT