Here is another painting optical illusion for guys who love this sub category. What this painting portrays is the grey mountains and warriors. You can see one on the horse and three others. But among all this, there is a face that has been composed using all these elements. If you look carefully you can find where. The whole painting seems to be a portrait once you are able to recognize the face in it. The face is of an old woman. The horse acting as the nose and the horse rider acting as one of the eye. You will be able to trace the entire face now.