This addon requires the CreatorPack resourcepack as a main resourcepack.
The Better Leaves Addon tries to make leaves more realistic. It changes the default model of leaves and adds two new planes to the model. Therefore the leaves have a bit more depth and trees look a lot more interesting.
The addon must be put on top of the CreatorPack in the resourcepack selection.
When using the Better Leaves Addon, make sure that leaves are being displayed transparent.
In Minecraft vanilla this setting can be found here:
Make sure to set "Graphics" to "Fancy".
In OptiFine this setting can be found here:
Make sure to set "Trees" to "Fancy".