I made the Sasa bamboos assets on Assassin's Creed Shadows while I was artist and product owner of the vegetation on the project. I quit before the end, though, so the screenshots aren't mine. Thanks to my former colleagues for allowing me to put their images here (I let their identification on the bottom). Otherwise, the images come from videos and players pictures from photo mode. The assets aren't always the same color as it was evolving throughout the seasons, as were multiples assets.
Screenshots/Level art:
https://www.artstation.com/ee2015_amg
Screenshots/Procedural artist:
https://www.artstation.com/shamann
Also, I want to mention and thank my former colleagues.
Vegetation:
https://www.artstation.com/theophilelebeau
https://www.artstation.com/alexgodbille
Ground artist:
https://artstation.com/claudegosselin
Associate Art Director & Lead:
https://www.artstation.com/vlam