CaptSopwith, your screenshot confirms one issue that I always wanted to investigate but never had time for that -- the Moon in WOFF is lit on the wrong side!
The problem is that, while the moon location accurately tracks in an arc across the sky, and the phase and position timing changes appropriately with the calendar, the graphic is always displayed as it was drawn (left-right, up-down). To look the way is should in the real world the graphic would need to slowly rotate clockwise as it tracks in an arc across the sky. As it is now it looks correct only when it is at the top of it's arc, and is +/-90 degrees off at either end of the arc.
