https://gamesartist.co.uk/pine-tree/
Environment Artist Ran_C details the creation of a stunning Pine Tree in Unreal Engine. In this article, Ran_C discusses his inspiration from Huangshan pines, the use of references, modeling in Maya, generation of branches and leaves in SpeedTree, high-poly sculpting in Zbrush, baking in Marmoset Toolbag, texturing in Substance 3D Painter and rendering.
https://www.artstation.com/ranchen
https://www.artstation.com/artwork/kQylLA