Krita is becoming a Painter and Photoshop killer.
It has been a long time since I checked out Krita. I Painted this in Krita 3.1.1 on Mac Yosemite. Versions for Windows as well, both are free. It took about six hours and the program was not shut down for two days. I had one lock up during export of the final PNG save, no problems with the tools or app other than that. Be sure to save often, just in case. I used the following brushes, available here:
Concept Art & Illustration Pack
Cazu Brush Collection
Just plying around I created this in no time:
Further playing ended with this:
Of course this gave me an excuse to continue painting:
and finally, the end result: