Is It a Ghost?

A mom was checking on her baby with a monitor when she noticed something a bit creepy.  An image of another child is lying behind her baby.  She doesn't know exactly what it is but other people have an idea.  They say that it is a family member who has passed that is watching over the baby.  The mom lost her son when he was 9 years old and people think it may be him protecting his sister.  It sure looks creepy.  Could it be a ghost or a guardian angel?  Source: Mirror