Here's the WIP of a little project I've been messing with. This was done with no GI (quality~1, AA~4); there's an identical one with GI that's... not quite done yet.

The 'clouds through horizon' issue referenced
here appears in two places in spite of my attempts to eliminate it. The bottom of the column directly to the right of the pedestal is slightly discolored, and there's a hole in the top edge of the fog to the left of the pedestal. The bottom of the column would be easy enough to fix with postwork, but the other one is a bit tougher.
The tree is the free XFrog Silver Maple w/out any leaves, the fence is Ogre's, the pedestal, church and weeds are from planit3d, the grass is the built-in stuff, the pumpkin is my own and I can't remember where I got the monument.
C&C's are welcome. On one of the monitors I've looked at this with, the lighting seems good. On the other, the pumpkin was way too bright, so I figure I'm going to do one more pass on this, so this is a good time to get in your best shot.... errr, suggestions.