Crying child sense dead child in a room

The following photo was sent to us via email by Emma. She writes:

At first glance you can't see anything but if you look to the right of the second girl's legs, you will see the head of a child. I believe it to be a ghost as there is nobody behind them. Plus, the child in the picture is crying, and they say that children are more likely to sense a spirit in the room than adults. Even more mysterious is that all of the women in this photo have since passed away.