Continuing with the Sky Manager tool. The first thing I noticed is that the sky preset toggle is called Beginner - oh well, the word presets would suffice.
This area of the Sky Shader Object allows you to set the place, time and weather. On the image below I tried out Midday, gloomy, foreboding and clearing. The non-GI images render in just below 2 minutes at 1280x720. This tool makes it easy to set up a time lapse animation showing the sun effects, etc. Now if it would only remind me of my anniversary, it would be perfect.
This tool will remain the center of activity for a while. Lots to explore here.
Animations involving the background are picture perfect because the sky is made of real volumetric clouds. It is a snap to create and as variable as you desire. It included a Hard Shadow (fast render) - Area Light Shadow (slower) and no shadows (zippy fast).