From the Creating a Grassy Outdoor Scene recent tutorial.
200 samples.
I've weightpainted a bit the grass.
Sky texture + AO (0.15) + 4 lamps.
Simple Uv mapping for the objects, exept skull which i added 2 musgrave textures + 1 Color Ramp + Bump node to the uv mapped AO map i baked before in internal.
I-5 750
Nvidia Zotac GTX 2.60
CPU (i can select GPU but that doesn't render).
Very long isn't it ?! One hour rendering.
I like the calcified look of the skull, The overall looking of the set.
I don't like the light top of the grass, it looks too white. I may need to set up the blending ramps a bit again.
I'll may remove this cutted head set up, and it will be more logical for this image (more natural looking than freshly cutted grass).
I'm worrying about render time. Do you think it's normal?