I removed the grids and have about a dozen of these complete, but I fear spamming up the forums with them. I need to find a cheap way to host them in bulk for easy free handout. Most of my textures are derived from CGtextures, or I'd hand them out to you, but that would be against their policy. Mainly I just make them into seamless textures and add some extra randomness to avoid patterning on big maps like these with a lot or repeats. Both the rocks and plants are more a matter of custom brushes and a few layer effects than anything else (I use Photoshop). If I can figure out how to take a screen shot perhaps I could show a little more of the process.