This datapack improves birch forests with three new structures: Gazebo, tower and house.
There are two types of houses, one is basic and the other is good.
Note: Chunks will be overwritten, so if you wish to add it to an already existing world do "/fill ~-16 0 ~-16 ~16 0 ~16 barrier" if bedrock is at y 0 to prevent structures from spawning within 16 blocks. The gazebo is 15x15.