Free work. I painted this piece using Zbrushs Paintstop to test the brushes, I have to say its really great for painting, you can get a great natural media look. The main character has a Poser Figure (V4 with some self created morphs in Zbrush) as a base which was than painted over in Paintstop as well. As you only have two layers in Paintstop (and I still dont really know how this layer system works proper), the piece was painted using only one layer just as you would paint on real canvas. All in all the whole thing was just a painting exercise which I enjoyed a lot.