As promised, here is that render I was working on.

I replaced the infinite light in Poser with the sun and sunsky setting from the example lux file included with LuxRender. I left the position as it was.

I like the lighing in this and the shadows as well, but I am having that problem with "fireflies" and I have no idea what that bright line is up the right side of the diagonal piece of the building with the doors. If you look behind the planter on the right side of the door it's where it's most noticeable.

I had to shrink this to get it small enough to upload, but the fireflies and that line are very noticeable on the larger image.

Rendertime: 9 hours.

Laurie