I made this for an environment I did to help make my own leaves for some trees. The Conifer Leaf Generator has 42 adjustable parameters and the Pine Needle Generator has 27, to help make your own leaves. They're not perfect but I had a lot of fun making them and hope others get some use out of them. They're available for free on Gumroad and Substance Share.
Conifer Leaf Generator: https://gum.co/NWMYr
Pine Needle Generator: https://gum.co/PEBon