I think you have done a really nice save on this shot. It is a good reminder to me to look around a bit before I hit delete.
How you found this crop in the middle of a funky shot is a mystery, but I am glad you did. The filter works very well for the look.
I have one of my own that I almost deleted. It was when I first got my long zoom P&S and on a 100 degree day I went out to try and shoot some airplanes landing. While waiting for planes I noticed two people in a field about a half mile away. So I just pointed at them to see how the zoom worked at that distance. I snapped and on the viewfinder it looked a bit blurry so I was gonna delete it. Then I saw a plane coming in...
I get home and realize the blur was cause by the heatwaves and the plane shots did not look very good. But when I cropped in on the field shot I looked like a Monet. It is still one of my favorite shot taken with my Sony.
My "Sonet"