I think this is what happns to a cemetery when it's isolated, old (the grass seems to grow thick), dark & gloomy and deadened. I gave it a shot for the THW Terrain Contest and this is my work.. I think it's waay to dark but the details can be seen..
It might actually look quite good, but at the moment details is just the thing I can't see. You can see some tombstones in front of (maybe) some trees. Light up your screenshot, honestly.