10-12 hours total with GIMP, including the Tricia Helfer/Cylon 6 painting.
If you like sci-fi and you haven’t watched Battlestar Galactica, you should. If you like real-time strategy games and you haven’t played StarCraft, maybe you should 😀
not that I’m any good at StarCraft :'(…
I’ve been wanting to do this speed-painting for a while. now I did it.