Alpha-mapped leaves based on photographs of a hazel tree in my back yard, the bark is fully procedural. All Materials are for the Cycles rendering engine.

The tree is a sample of what can be created with my Space Tree Pro add-on for Blender.
It can be used as is or (if you have the Space Tree Pro add-on) as a starting point for other trees. (It has all the Space Tree Pro settings stored as object attributes, which will be recognized by the add-on)

[Space Tree Pro is available on Blender Market.](https://cgcookiemarkets.com/blender/all-products/space-tree-pro/)