The author of this tutorial is Manfred Altenkirch. He created a watercolor painting from a landscape photo using AKVIS Sketch.
Manfred uses the Sketch plugin in this tutorial, but you can take the standalone edition.
Let's follow his steps to achieve the same result.
When the plug-in window opens, press the button .
The photo will be converted into a pencil drawing with the default settings. The resulting pencil sketch will be shown in the After tab.
Here is the final result:
You can add a photo frame if you like. Use the tools of Photoshop or, which is faster, the program AKVIS ArtSuite.