Damn man, this looks near photorealistic

What were your render-settings this time? Always useful to know.
You might try to add some extra stuff to the surface like fake stones and grasses (only foreground portion).
The different tree-species look good together. However, you might try to make clumps or streaks of different trees so they are more grouped. That's what you often see in nature.
I really like this work, very atmospheric too.
Keep m coming

Cheers,
Martin