Sometimes, when you are just playing around in Photoshop, you come up with the most unexpected results. Today's one of those days. I adjusted levels and curves as I usually do, also split the channels and used only the green one. Then I clicked on the "replace color" filter, didn't select anything, but moved brightness as far to the right as I could. This is the effect I got. Then I toned the image blueish and here we are. My first PAD of my 4th month. I'm a quarter done :)

Here's the very lacklustre original (resized and sharpened only) that I started with: