The model has real world scale. For the preview images the model was subdivided one time (last picture shows real poly count).
All used textures and maps are included: one texture / diffuse map, one glossy map (invert for roughness), one subsurface map, one subsurface colour map, one metallic map, one transmission map and one metallic map. Each image measures 4096 x 4096 px. Colours can easily be modified. UVs are unwrapped and everything is named logically.
Do not hesitate to ask any questions.