Fantasy Worldbuilding: Names, Nations, and Cultural Balance

I’m working on a story and thought of making each nation based on real-world countries, as fantasy counterparts. I don’t want to go too heavy on culture—mostly focusing on architecture, civilization, and lightly weaving in historical elements.

After playing a few video games with fantasy-inspired cultures, such as Honkai: Star Rail, Wuthering Waves, and the Trails series, I have some hesitations about the world I’m creating.

For language, the world I'm creating have their own universal tongue while the script text that will appear in illustrations will be my own creation, sometimes comes in different front style depending on the regions. My concern is avoiding shallow portrayals or unintentionally disrespecting cultures due to stereotypes.

As for characters, some of the main characters come from different nations—three of them from regions inspired by China, Japan, and Italy. **Keep in mind: I had already thought of these names before I started thinking about the fantasy counterparts**: Carol, Terra Fukui, and Dante Obsidian. Do I need to adjust the names to better adapt their cultural inspirations or is it okay to keep it as is.