This is the result of my study from CGMA Organic World Building In Unreal Engine-5 by Anthony Vaccaro. Anthony is one of great environment artists behind awesome games like The Last of Us: Part II, Uncharted: Lost Legacy, Uncharted 4: A Thief's End, The Last of Us, Uncharted 3 , Drakes Deception, Halo Reach and EverQuest 1 - Underfoot, 16th Expansion.
I learned a lot from his lessons making my work more optimized. I made all the models and textures from scratch. Trees, plants and grass leaves and rocks detail are sculpted in Z-brush. Sculpted leaves are baked in a plane in Substance Painter to paint in the material
and create an atlas map. The detailed rocks is then baked to a low poly model in Painter and textured. Texture maps are then used in SpeedTree to make leaf and branch clusters forming the canopy of the tree. I made the tree trunk and main branch in SpeedTree. :)