Jackarandajam
Troubadour
On one end of the spectrum you have the Stormlight Archives by Sanderson; about as fantastical as you can get, with very little outside of human nature conforming to our reality.
On the other, you have GOT or Abercrombie's stuff, where alot of what you read could be medieval fiction rather than fantasy. All mentioned pull off Fantasy nicely, because all of the authors mentioned spent grueling hours on worldbuilding and being consistent.
It's a sliding scale of "how difficult the world is to explain" vs. "Your ability to explain it".
If you aren't careful or are unfamiliar with technique important to complicated worldbuilding, there's a good chance you won't pull it off, but that doesn't mean your idea is too complicated or "too fantastical."
It just means you've got some footwork to do.
On the other, you have GOT or Abercrombie's stuff, where alot of what you read could be medieval fiction rather than fantasy. All mentioned pull off Fantasy nicely, because all of the authors mentioned spent grueling hours on worldbuilding and being consistent.
It's a sliding scale of "how difficult the world is to explain" vs. "Your ability to explain it".
If you aren't careful or are unfamiliar with technique important to complicated worldbuilding, there's a good chance you won't pull it off, but that doesn't mean your idea is too complicated or "too fantastical."
It just means you've got some footwork to do.