I haven't used any filter on this image, the shadows were created from natural window light as it made her skin look more natural and less ghostly. The studio lights completely washed her out and hid all of her freckles which I didn't want to hide. I then did a similar technique to this image as I did with my film poster; I used a brush with fades edges to colour in the background, the side with shadows in black and the highlighted side in white. This was to hide the background but to also keep the continuity running through both pieces.