When the weather outside is frightful (pardon the cliché), an indoor ring is good for two very important duties: (1) keeping the hay dry to feed the horses and (2) riding. This photograph has symmetry highlighted by the very bright windows; when a very bright light source shines through a lens (and it’s particularly noticeable with this prime lens), it creates an image of itself on the inverse side of the center of the image. In this particular case, that inverted image appears over the pony, indicating that the pony is across the inversion point from the window.
Decaseconds 