I think it's very possible! I believe that the trick is deciding where your story is going.
Have a distinct understanding of how your plot/story will interact between all the nations.
For example,
If your story focuses on the Steampunk country, you should focus on the Steampunk country and...
It is possible to be original!
No matter what anyone says there will always be original ideas for cultures, people, events, and scenery! The question is how different are you looking to be?
It's going to be hard to reinvent the wheel, but I'm certain it's possible!
If you're looking to expand...
Hello to the forum!
Hello to all the Readers and Writers!
I have loved Sci-Fi/Fantasy for as long as I can remember!
From my days as a dewy-eyed boy dreaming of being Batman and Spider-Man, then my formative pre-teen years wanting to go on adventures with Percy Jackson and Carter Kane in...