To finish the piece, create a new level adjustment and move it to the top of the other layers. Load the selection of the desaturated Kate Moss layer mask. This will kept the levels adjustment from affecting the background pic (which isn't in yet). Working on the new levels adjustment layer, adjust the levels to add more depth to the picI found a pic of the Parthenon, dragged it onto the Kate Moss pic and placed it behind the desaturated layer of Kate. I then used the Hue, Saturation, and Lightness, click colorize, and changed it to green.Working again on the layer mask of the desaturated layer, i used a feathered brush, using black, and just so slightly went out the very outside edges of the statue to soften the appearance and remove any sharp, well defined areas.That's it. I hope this has helped more than it has confused. :)