Wow! I
really like the darkest one, Pine Forest 2.
The light is just great and the decay of visibility is perfectly done, I'm looking for 'things' hiding behind the trunks, it's really menacing.
The specular highlights in the lower right hand side on the grasses/ferns is fantastic aswell, very realistic render and my favourite post from you so far, and one of my favourite TG jobs ever.
One to be very proud of, in my opinion.