To date, there have been two Dynamistress novels, with a third on the way. I'd love to translate these into graphic novels, but lacking a talented artist, I'll just have to live with good ol' words without pics.
Dyna's story is not that of a typical character. There is no "nemesis," save perhaps herself. Overall, it's a story of a woman who becomes a "hero" for all the wrong reasons (i.e., fame, etc.) and who, over time, comes to become a "real" hero.
Lots of other characters, some adapted from COH characters (with their players' permission), and plenty of originals, too. Feel free to check out her website. LOTS of art and whatnot, including a comic strip (showing the funny side of a serious character).
www.dynamistress.com