After a break of one week, I'm posting the latest results of my experiment again. Last week, I didn't notice much change from the week before that, so I didn't post a photo. This week, the forest looks denser, so I'm posting the latest photo.
Although I have taken each week's photo at about the same time, I may stop doing that and try for a photo that's taken about an hour before dark, whenever dark is. Now that it stays lighter so much longer, the big difference in lighting also plays a part in seeing how the area changes. The flatter light in the earlier photo actually makes the foliage easier to see.