Weird Custom Tree Generation

I am making a mod with custom candy cane trees in it on version 2024.2 of MCreator. I made 4 structures, each a different rotation of this custom tree. I have two problems. 1: it spawns in rivers and lakes with a little island with it which is annoying. (They are frozen so maybe that's why?) 2: They all group to the same chunks and so they combine into 1 monster looking thing lol. Any help would be appreciated!!