So, today I dumped the footage and gave it a little "look-see". And it looks pretty good.
When we grabbed this shot the sun was starting to sink behind the mountains:
But by the time we got ready for our next shot looking out the door at her, the sun had gone down and the world was dark and blueish.
Looking at the footage now, we're going to need to adjust it so it looks similar, but that's do-able. Expecting the audience to believe that it was still day with a dark background would not have worked at all.
The joys of "fixing it in post" <smile>.
Your Media Production Mentor