I recognized #6, I've seen it somewhere else recently. As I recall though, that story was more interested in the ball-point pen angle, almost as if you can't do "proper" art using such tools. I have to differ with that opinion, obviously the quality couldn't have been any better using more ordinary tools. It's not just that the works look almost photo-quality, they have a life in them that you can feel. And that marks the difference between a good artist and a Great artist.