Woman in the Window Ghost Photo

Jonathan Hunter sent us this ghost picture of what appears to be a woman in the window. Does it look like a woman or did something else cause it? It's intriguing, but you decide:

"The picture was taken 3-4 years ago by a friend who was looking at the house to buy it, Near Marhsall, IL. She did buy the home and for the first year or so reported hearing footsteps and mistakenly thinking her daughters were in their rooms upstairs only to go and look and no oneĀ else was home. She also said she would smell perfume sometimes.

I think it looks like a woman with robes on or even an angel with wings. My firend took several other pictures of the back of the house and no image in the window in any other pictures."