Thank you for your interest in the package, please see the below:
Blender / Cycles
1:1 (Real world scale)
Blender using included HDRI for lighting, cameras using focal depth which can be switched off.
Smooth modifiers left on, stack intact (in other words the model could be used for low poly environments if you switch of the smoother on the bow.
Hero objects - layer 1
Background objects - Layer 2
Cameras and plane with shadow catcher enabled - Layer 10