Haven: Sky Structures is mainly made for Haven: Skyblock Classic+ but can be used in any Skyblock themed modpacks.
It adds numerous islands in the Overworld and The Nether.
Each island is unique and provides various blocks, items as well as random loot in chests that appear on some islands.
There are 2 islands that provide Villagers, 1 contains Zombie Villager that have been experimented on, the other is a little hut that contains 2 Villagers.
Soon there will be 2 different versions, one will have the structures in their respective biomes, the other will have random islands around.
Meaning the Jungle Island would be located in a Jungle Biome.
Showcase:
Overworld:
Nether: