Thanks, Hannes and Ulco

Of course some more tree variations will help - so I planned to add some slight red ones like european beech e.g. But anyway I don't like the actual yellow trees. I think they have a too intrusive silhouette for my taste.
Ulco I will think about the light conditions. But perhaps I better play with gamma and environmental lighting because the image could loose some "magics" if I loose (ore reduce) the long shadows. But I will see, what happens