https://gamesartist.co.uk/the-oak/
3D Artist Elia Luongo gives us a great breakdown of The Oak in Unreal Engine 5. The article covers key aspects such as goals, tools, references, photogrammetry, baking blockout & modelling stages, highpoly branches, SpeedTree nodes, materials, animations, lighting & rendering.
https://www.artstation.com/elia_luongo
https://www.artstation.com/artwork/OG4zb6