I'm excited this week because I am working in the graveyard biome. I'm really into spooky stuff so its really fun for me to work on a biome like this, full of zombies and crypts and things. Here is a zoomed out image showing the entire biome at once.
Here's a view closer to the ground. Right now the graveyards are fill of spooky dead trees, headstones and crypts that spawn zombies until they are destroyed.
I've also been adding wall objects that you can use to slow down zombies when you are running away from them.
Graveyards will be dangerous places, especially at night. Players will want to be sure that they are well equiped when exploring them on their adventures.