The first 4 pictures - previews is made with LUXCore render FREE ADD-ON
The Native files Blender are:
ARHIVE: includes base Blender file and blender with LUXCore render
It is mounted on the coordinate system (0,0,0) is in 1:1 size
in use Render LUXCore Render 2.4
P.S .: Priority - produced in Blender program builds -** Blender 2.83.6**