If you like to be on the bleeding edge, here is an early version of FotoSketcher 3.20: http://www.fotosketcher.com/FotoSketcher_3.20_alpha5.exe
I have tried to improve compatibility with Windows 10 and reduce occasional window flickering. There is also a new preview window next to the drop down list of effects as shown here:
I have tested this version on a Windows 10 PC and on a Windows 7 virtual machine, so I would be grateful if you could let me know if you encounter any bugs on your PC.
As a small bonus, here is a script file: http://www.fotosketcher.com/Painting9and10.zip. Unzip the file and open it in FotoSketcher's script window (F5). This is the output (source: Wikimedia commons):
All the best,