Since I'm not familiar with the 'the lemon tree novel', it's difficult to say for sure. But perhaps there could be a gardener who takes care of the lemon tree, a child who loves to play around it, or an old man who has memories associated with the tree. These could potentially be the main characters.
I don't know as I haven't read it. Maybe it has characters who are scientists studying the tree of life concept.
I'm not entirely sure as I haven't read it recently, but typically in a novel like this, there would be a central male character who might be the one most closely associated with the 'tree of man' concept, perhaps a character who is deeply rooted in the land or community.
I'm not sure without reading it, but usually there are some key family members like the patriarch or matriarch. They often play important roles in driving the story forward.
The two main characters are the tree and the boy.
I'm not entirely sure, but there might be a character who is a soldier or someone involved in a military - like situation. This character could be central to the story as they navigate through the events in the 'tree of smoke novel'.
I'm not sure as I haven't read the 'crooked tree novel' specifically. But usually, in a novel, the main characters could be someone who is directly related to the 'crooked tree' symbol. Maybe it's a person who discovers the crooked tree and is changed by it. It could be a young adventurer or a local who has lived near the tree all their life.
Since I don't know the exact 'Tree of Life Novel', I can't say for sure. But they could be scientists interested in the concept of the tree of life, or characters with special powers related to it.
I don't know for sure, but it could be a family. Maybe there's a wise old grandfather who has been taking care of the mango tree for years. There might also be a young boy or girl who loves to climb the tree and play around it.
I think there are two main characters. They are the young man and the young woman whose relationship is at the center of the story.
I don't know for sure as I haven't read this particular graphic novel. But it could be some kids who are curious about the Halloween tree. Maybe a brave boy and his friends.