Realistic Natural Scene 3D Model

I need a fully-textured, game-ready natural environment asset for my current project. The scene should center on rocks, trees, ground cover, and related terrain features, all executed in a highly realistic, detailed style that will hold up to close-up in-game cameras.

I’m working in Unity, so an FBX (or equivalent) with 4K PBR textures, clean UVs, and proper material assignments will be the ideal hand-off. If LODs and a packed foliage shader setup can be included, that’s a plus, but the core requirement is a polished hero asset that drops straight into the engine without extra cleanup.

Please show examples of similar, realism-oriented outdoor work you’ve done and note the tools you plan to use—whether that’s Blender, Maya, ZBrush, Substance, or SpeedTree—so I can be sure everything will slot smoothly into the pipeline.