The grass in the foreground needs to be just a bit greener I think. (thanx cshaftoe) and maybe it could use a bit more contrast. And I think the fact that all the grass is pointing up doesn't help to much either. I think it's these little tiny things that make it look not as perfect as it could have been. Maybe you can use imported grass-objects in the foreground and keep the terrains in the background. If it's overworked you'll hear it from people (especially when you ask if you've overdone it). If this version turns out to be the best one you can always ask/tell AgentSmith to use this version for the challenge when it's voting time.

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