Genre: The most important part when you begin writing a novel is picking a genre. Think of all your favorite books or movies and take inspiration from all of them. Is your novel going to be set in a medieval world? Space? A dystopian civilization? Apocalyptic world? Once you decide it will be a lot easier to write out a plot and the details of your world.
Setting: The second most important part of writing a fantasy novel is choosing the setting. Typically, most fantasy novels take influence from medieval Europe, but it doesn’t always have to be that. What does the environment look like? Is it set in a cold environment, hot environment, desert, space, mountains, coastline? All of these are factors to consider when creating your world.
Plot: Typically fantasy novels follow a plot where the main character has to go on an adventure or quest to complete a task. However, this plot can have a lot of variation and provide a unique story. Some ideas to consider when working out a plot are the tools you will use to advance your plot. This could be magic, a character with a very specific skill, or any other unique additions to your book. This could also be influenced by the setting, perhaps the world is set in a dystopian setting where there are tensions between the rulers and their citizens. Maybe the main character has to go on a quest to find something. The possibilities are endless.
Characters: People like to read about relatable characters. When creating a main character it’s important to make them believable. Many times, new writers create a character that only reflects positive traits, when in reality, everyone has negative traits they’re not proud of. Insecurities and mistakes in a character give the reader an emotional attachment to said character. When writing side characters, make sure they exist to further the plot. Also try to give them their own personality to engage the reader.