Based on Chunck's tutorial:
https://cgcookie.com/resource/model-bonsai-tree
---------------------- Ver.1
* Modeled by Blender and textured by Substance Painter
* Did not sculpt
* Did not use Particle Children
* Used positive gravity to pull leaves upward to simulate pine needles (.. too extreme)
---------------------- Ver.2
1. Optimized leaves, now each leave has 4 plane 16 verts using albedo + opacity map
2. Simpler leaves allow more particles, used to be 1000, now 2000
3. Applied displacement to tree and dirt
4. Cycles render attached
Nice work 😀! Thanks for the notes attached to your tree in the sketchfab walkaround!