this Blend Project includes the Harvester vehicle 3d model + the hangar 3d model and some minor props with all their respective materials and textures plus render settings:
 it features multiple scenes with different lighting schemes: overcast, sunlight, moonlight, artificial interior light

• the objects geometry still have all the modifiers stack for easy editing
• materials features a procedural node setup, with procedural masks that can be easily modified
• I also set an automatic node system that makes the masks and the texture coordinates varies when duplicating the object (works with instances as well)