Pyramid Structure Sci-Fi Low-poly 3D model

This is my first upload, please notify me of things that might be wrong :)This is architectural piece, modeled in Blender, and it is based on real world monument in Bulgaria. I was fascinated by its brutalism and StarWar-ish looks at the same time. Low-poly, suitable for game engines, tested in Unreal Engine (UE4).There are several versions included:

• generic concrete textures, parts as separate meshes;
• generic concrete textures, joined parts as one mesh;
• generic Sci-Fi paneling and metal textures, parts as separate meshes;
• generic Sci-Fi paneling and metal textures, joined parts as one mesh;
• more accessorized Sci-Fi version, parts as separate meshes;
• more accessorized Sci-Fi version, joined parts as one mesh. Ramps and stairs are separate (in non-joined files), you can swap or remove them.Depending on interest, I might do other Sci-Fi themed and for games suited models.