The secret of an image

good night everyone, hopefully tonight will be a beautiful and pleasant night and we will be kept away from a disease called corona, tonight I want to share the experience of an image that hopefully can be an interesting discussion for all friends here

I took this picture in a film called "Mawgli" adventure film that tells the story of a child raised by animals.
I plan to take this picture for me to use as a background for a photo for me to make a Facebook cover, but what a surprise when I want to edit, I accidentally pressed the mirror button in a photo editing application called "Picsay Pro". into an unusual picture,

Let your friends look carefully at what is the secret hidden in this picture, is this an intentional element or not that the picture is clear after I mirror it to become a symbol of scary darkness, what in the opinion of friends here is this coincidence or is this a secret picture behind a picture.