I'm still playing around with blender, its a wonderful tool, even if I don't understand much xD

result of this evening was a improved scene ( the old one, i posted some weeks ago). Still not finished, the grass has still a "lego-look" and the light is not right, but enought for this evening ^^
final result

now i have to search, how to handle with the alpha-transparent of the trees, because they are still too dark (if i set the diffuse > 0, they get a strange glitter)