What you are seeing is an optical illusion that is known as “My Wife and My Mother-in-Law.” Most people tend to see the younger woman looking to the left and slightly away from our vantage point. If you look closely enough, however, you will also see an older woman who is looking downward. This image was simplified and many people have seen it online, yet very few have seen the original.
Check this video if you need some help seeing both figures.