Are you considering doing the 24 Hour Challenge? This tutorial by Steve Lund might help! Learn just how easy it is to create a realistic forest environment in this Blender Tutorial! This covers the entire process of modeling, adding assets, realistic materials, and environment lighting, then finishing with compositing and color grading!
from BlenderNation https://www.blendernation.com/2018/03/10/create-a-forest-in-blender-in-1-hour/