Light and Water: Post Three

Here is post one. Here is post two.

In this post, I have a sequence of three pictures taken at Kidney Pond in Baxter State Park around the time the sun was setting. What, if anything, does this have to do with how we should be thinking about post one and post two?

Update: On twitter, the idea has been put forth by several that this is the result of the winds dying down as the sun goes down. The seeds of doubt for me is that it doesn't account for the receding nature of the boundary over time. I think it might have more to do with the portions of the lake receiving direct sun light. In other words the "image" of the trees is always there, but it's hidden in the noise of the scattered light. The image is "hidden" behind a curtain, and as we pull back the curtain, we see more and more of the image that was always there.