The woman in black

The woman in black is a supernatural horror-thriller film which is based on the novel by Susan Hill with the same name. We watched the trailer and quite liked it, and even got a few ideas from it. Here is the trailer: 

Above are two screen shots from the end of the trailer in which the character is looking out of the window, the second shot there is the faint figure of what appears to be a ghost. We have a similar shot we would like to use in our scene, in which the character is looking out of the window: