I don't know how to act, this rendered in 14 minutes. :o
Quality- .7
AA- 6
Great work! I really like the sky.
Still like the shadow play. Really helps a render pop.
Good textures and choice of colours, concerning the terrain and foliage (did you change the colour of the objects, or were you lucky) ,-)
The sky is nice, but would work better with a very steep up-view - and try to balance the sky's colour with the terrain a bit.
I changed the color with a color variation. Transform shader(world space) and a PF with a small lead in scale.