Gudrun Hall
Amazing Hair Vol. II- Citizens of Cyborgia : Coloring Book from the Future
- Citizens of Floria
- Citizens of the Future Realm : Coloring Book from the Future
- Citizens of the Realm Below : Fantasy Coloring Book for Adults
- Fairlandia Coloring Book
- Insectologist
- Mecha Maidens
- Myths, Monsters and Magic
- Scenes from the Forest
- Transcendence