Symbol in Painting

The major symbol that catches my eye in the painting is the womens reflection on the floor , i know that it symbolizes something deeper than it appears but i cant quite put my finger on what it is inferring. its obviously her in the reflection on the floor. There appears to be a mirror in the back reflecting the horse that is in the room with her as well. Another major thing that caught my attention is the cat in the bottom right hand corner, to me the cat symbolizes independence because cats are usually independent animals.