I'm not sure since I haven't read the story. But it could be a story about two friends, where one becomes jealous of the other's success.
Since we don't know the exact 'green - eyed monster story', the main characters could be many different types of people. It might be a group of students in a school setting. One student, perhaps not as popular or not as good at studies as another, could be the main character who is filled with jealousy (the green - eyed monster). Or it could be two co - workers competing for a project, and the one who is jealous of the other's skills or advantages becomes the central figure in this story of envy.
The 'green - eyed monster' is a metaphor for jealousy in literature. In this short story, it could center around a situation where jealousy arises in a community or among a group of friends. There could be a character who is the envy of others because of their talents or looks. And this jealousy then creates conflicts, like backstabbing, gossiping or even more serious forms of sabotage. It might also explore how the characters deal with this jealousy, whether they overcome it or let it destroy them.
Since I don't know the story, I can only guess. There must be the little green monster itself. Maybe there are other friendly or unfriendly creatures that it interacts with, like a wise old owl or a mischievous little rabbit.
Well, the 'green - eyed monster story' could be various things. In many stories, the 'green - eyed monster' represents envy. It might tell of a situation where envy causes problems. For example, in a group of friends, one friend might be the 'green - eyed monster' and start causing trouble because they are envious of another friend getting more attention. The story could show how this envy affects the relationships and the overall situation in the group.
Well, in a general 'a green monster story', the main character would be the green monster. There might also be some side characters like the monster's family if it has one in the story. And perhaps a brave hero or heroine who tries to understand the monster instead of being afraid of it. There could also be a villain who wants to capture or harm the green monster for some reason.
Well, obviously Bella is one of the main characters. Her green eyes are often a central part of the story, whether it's about her relationships or some special abilities she might have. Edward is also likely to be a main character as he is in the original Twilight series and his relationship with Bella is a big part of the fanfiction.
Maybe there's a narrator who is observing Black Eyed Susan and is also a main character. There could also be other characters like her family members or friends if the story is about her personal life.
There could be a group of villagers. They are the ones who are afraid of the big green monster. And perhaps there is a wise old man among them who gives advice on how to deal with the monster.
I don't know for sure, but I assume the green bird is one of the main characters. There might also be a person who discovers the green bird, like a shepherd or a little girl.
Since we don't have more details about 'the green door short story', it's hard to say exactly. However, it's common for there to be a protagonist, let's say a person with a sense of adventure and a thirst for discovery. This character would be the one whose actions and decisions revolve around the green door. There might also be an antagonist, although not always. It could be someone who tries to stop the protagonist from opening the green door or someone who has a different view on what the green door represents.