That's the new version after addressing some of the observations of you, guys.
As I thought the first image foreground too dark, I changed the color of the leaves in the flower bushes.
Comments and critics welcome. Wanna make it better.
Dune look if the reflective shader You pointed, gave the effect you were expecting.
Personally I'm not really satisfied with the overall tone of the taller trees back there. I'll try to make them a little lighter next time.
Oh, it was a 23:49hs renders (I need TG4 but that update price...

)