I don't think Darren Modok was featured in the comics. Usually, characters like this don't just pop up without notice or a lot of buzz among comic fans.
There isn't enough information provided to really know who Alpha Kieran Stone and Alexia Novel are. They might be names created for a particular work like a novel or a movie. It could also be that they are the names of people in a small community or a specialized field that isn't widely known. Without more context, it's difficult to say more about them.
It's different in the sense that it's a graphic novel rather than a film. But it might share some common themes. For instance, like his movies, it could explore the human condition. However, the graphic novel format allows for a different kind of visual storytelling. In his films, he has more control over movement and time, while in the graphic novel, he has to rely on static images and the reader's imagination to create a sense of progression.