1. Too many themes: Having multiple, competing themes can dilute the impact of each. Focus on one or two central ideas that underpin the story.
2. Themes that are too broad: "Love" or "good vs. evil" are too vast to be explored effectively in a single story. Narrow down your focus to more specific aspects of these themes, like "unrequited love" or "the consequences of unchecked ambition."
3. Themes that are irrelevant: If a theme doesn't relate to the plot, characters, or setting in a meaningful way, it's likely not a true theme but an afterthought. Ensure your theme is interwoven into the fabric of your story.
4. Themes that feel forced: Don't shoehorn a theme into your story just because you think it's important. It should arise organically from the narrative.
5. Themes that are clichés: While classic themes like redemption or overcoming adversity can be compelling, avoid relying on predictable tropes. Put a fresh spin on them or explore them in a unique way.
Instead of asking what shouldn't be in a theme, consider these questions:
* What is the core conflict of my story? The theme often emerges from the central conflict.
* What message do I want to convey to the reader? What do I want them to take away from the story?
* How does the theme relate to my characters' motivations and actions? The theme should be reflected in their choices and struggles.
Ultimately, the "right" theme is the one that feels authentic to your story and resonates with your intended audience.