Cave Walls 1 - Moss 2 Low-poly (Polygon mesh 3D model) is available on CGTrader for $12. Original author: wernie. Specs: 7700 polys, 11550 verts.
OBJ (OBJ, filesize: 550 KB), BLEND (Blender, filesize: 976 KB), 3DS (3D Studio, filesize: 255 KB), DAE (Collada, filesize: 440 KB), FBX (Autodesk FBX, filesize: 577 KB), TEXTURES (Textures, filesize: 27.4 MB)