The author of this tutorial is Igor Noskov of Russia.
He writes, "One day a friend asked me to print a photo of his mother, but first to add a couple of trees to the background behind her. When I opened this photo, instead of the bright and beautiful colors of fall, I saw a dreary scene. I wanted to add brightness and color and to remove three birch trees, one of which was broken. This tutorial is a good example of how it is possible to get a good result even if the photo has a gloomy, rainy background."
AliveColors was used in this tutorial, but it's possible to get the same result using any graphics editor which is compatible with the AKVIS SmartMask plug-in.
You can switch the Mask View Mode and view the fragment on a color backround.
The photo turned out like this:
The friend was simply delighted with the result.