started a new interior all in cinema 4d and rendering is Advance render v3.
the light source for the day time shot is the sky and sun system set to physical. I added some tree models to the garden as i feel the break up of the shadows is more natural. the night shot is lit by a flash light which is a strong light ( cube) inside an open cone which has a 100% reflective material on ( make sure you flip the face normals)