The main themes are good vs. evil, friendship, and the role of prophecy. The good - vs - evil theme is complex as the two main characters don't fully conform to their respective sides. Their friendship grows out of their shared experiences on Earth. And the role of prophecy is interesting as they are constantly trying to either prevent or fulfill it, which ties into the ideas of fate and free will.
Definitely Aziraphale and Crowley. Aziraphale's naivete in some ways and his wisdom in others create a great contrast. He can be so proper as an angel but then be completely enthralled by a good meal. Crowley, on the other hand, is the cool demon. He drives a cool car and has a sarcastic sense of humor. He's also quite protective of Aziraphale at times. Another interesting character could be Anathema, the witch. She's smart and independent, trying to figure out her role in the grand scheme of things.
Goodreads can also be a source. Although it's mainly for books, some users create lists of their favorite Good Omens fan fictions. You can look through these lists and find stories that have been highly recommended. And don't forget to ask other fans. If you know someone who is also into Good Omens, they might have some hidden gems in their fan fiction library that they can share with you.
Yes, it was a successful novel. The characters in 'Good Omens' are well - developed and memorable. The story's ability to balance the serious topic of the end of the world with comical situations and witty dialogue made it a hit. Moreover, its popularity led to adaptations in other media, which is a clear sign of its success as a novel.
Sure, there is a Good Omens graphic novel. It brings the story to life in a visually appealing way. The illustrations enhance the experience of the narrative.
Good Omens is primarily a traditional novel. However, there might be some related adaptations or spin-offs in other forms, but the original work is not a graphic novel. It's known for its rich and imaginative storytelling in prose.