Only Corona, no postprocessing.
looks great, may i ask which skies did you use?
Sure! I used 05-18_Day_A and 06-14_Sunset_B from NoEmotion (free HDR’s - guys did a great job there). Both maps with Enable Color Map ‘trick’ (see attached file - points are 0,98 | 0,98 and 1 | 1.2).
If you want more control in terms of light color you can swith to RGB mode in Color Map properties and edit each color separately.
The renders look really nice !
Especially the night-shots look really cinematic
And btw, thanks for the HDRI-resource 
Thanks and no problem Chrizzo