I added some clouds-fogs near the mountain and in the lake, but they make a strange result, especially near the shore they seems lighter, maybe i need to decrease the density? Another issue: the grass seem very dark, i plugged a power fractal shader to modulate the colour, i choose a light colour, this seem strange like it was without texture. I thinking to move (or delete) the boulder on the right of the corner's picture maybe near the lake. I m also doing some different rendering with another different point of view, to find other possibilities, but it remains little time...