My first test using the "GrasWald" AddOn I bought three days ago. Satisfied ￼! Needed a nature scene, so sculpted a swan, created a lake and placed a few flies in it that I did earlier on my "Piano scene".
99% Blender and 2% Gimp for hand painted color and bump images for the swan and some color correction.
Foreground "GrasWald" AddOn.
BackGround trees "Sapling Addon" with procedural material.
Lake, just a plane with wave texture.
Swan sculpted from scratch.
Flies sculpted/modeled in earlier work that I have done and now re-rendered in different positions.
Fog is volumetric emission using a musgrave texture and some XYZ separation.