Here are some screenshots from the graveyard asset pack I'm working on. Started over a year ago on it, but it grew a lot. Now it's close to 2k models.
If there are some things you wish me to include in the asset pack - feel free to suggest them. Feedback is welcomed!
Finally released: https://www.unrealengine.com/marketplace/en-US/product/forgotten-graveyards-low-poly-cemetery-mega-pack