step 11 You can copy/clone as many times as you want. You will notice that I haven't cloned the light/dark areas. If you want to spend more time cloning, go for it. But I have an easier way - Hide it!
step 12 Have a look on Google for some nice trees. Here's one I found earlier. It's nice, and quite easy to cut out. First, though, clone those electric lines out of the image:
step 13 That's better. We are going to select all of the blue color, then invert the selection to get our tree.
step 14 Go Select->Color Range. When the screen pops up, click the blue sky in the picture and move the Fuzziness slider to 200.
step 15 Click ok and the selection appears. Click CRTL+SHIFT+I to invert the selection!! Now, CRTL+C to copy, CRTL+N to open a new document, CRTL+V to paste. Fill the background layer with black so we can see how good/bad the cut out is: