Hi!

Here are some things that might interest you about the file.

(It is a zip, inside it contains a folder with 2 textures and the .blend file).

The first thing, each tree is distributed in a named collection and with a respective enumeration, in this way it will help you find what you need more easily.

It should be noted that the leaves of the trees are related to the trunk of the tree, in this way you only have to move the trunk and all the leaves will move with it.

If you want to edit some of these leaves of the tree you must activate in the filter of the list, "select".

After activating them, you can go into edit mode and select within the 3 layers that make up the leaves of the tree, in the section "Object data"> Vertex groups> select the layer of leaves to edit.

The material of the leaves has the "Subsurface" activated, if it generates a lot of load on the pc you can deactivate this option in the properties of the Principled BSDF material or by replacing it.

That would be all! Greetings!