I used CS2. I duplicated the background layer and used curves to lighten it up a touch. Then I duplicated the new layer 2 times then used the color balance tool to make change each of the layers a different tone. I made a yellowish green layer, and a magenta-ish layer.
I used the magic wand to select the tops of the trees so I could blend the sky using masks (All but the yellowish green layer). I used the lasso tool to select the structures and lightened them with curves in first layer I created. I applied a gaussian blur to the masks of each layer to soften the edges a bit.
Finally, I flattened the image, went back to burn a few areas that were too light or were hard to blend in with the surrounding colors, added a soft vingette. I could have blended the trees better but I was rushing (my 4y/o wanted lunch)
I'm bet there's a faster way to do this but this is how I know to do it. Hope you like it.
