Riddle?

[vaneramos]

I love puzzling photographs, but I didn't realize the first image in my previous post would be difficult to figure out, but I know the context. If you can explain what's happening there, please do. Otherwise, I might have to clarify it myself, and post the original image from which that one was (slightly) cropped. Or I could just leave leafshimmer wondering.

Meanwhile, since this morning's walk, snow has hit, and it's looking heavy. In less than an hour the bare ground has been covered.