Ghost in the Woods

I bought this real photo postcard many years ago when I was still in California. I liked the image of the woman with the bonnet walking fast through the woods. It wasn't until over ten years later that I realized that I don't think there is a woman in a bonnet - and who wore a bonnet in 1925 anyway, but it is just an illusion made from the dark shadows of the creek in the background - or is it?

I still feel like I see her more clearly than the woods alone. She seems to be carrying something. Do you see her? Is it a person, an illusion or a ghost? Please tell me your opinion.