@wetbanana: Yes, I do model them myself, since a couple of months. This is just a very simple 'block'. And you're right about sitting them on the hill procedurally isn't perfect. But this is just all 'quick and dirty' playing around. I don't want to spend too much time here. If it were for a commission I would do it differently.
The sky was just luck. I haven't touched the new settings really, up till a few days ago.
Here's the night version. I've built a new model now, which will be featured in another render.