Greetings everyone,
I am Centurian, an architect based in India and recently I have been rendering some of my previous studio projects to strengthen my portfolio. So here is what I desperately need your suggestions on :
There is this exterior scene of a Transportation Hub that I am setting up currently. I want a daylight (Around 4-5 PM lights) but at the same time I want my interior lights to play in the whole scene. What and how should I proceed in order to achieve such an effect. Here are some of the images to explain better:



I have been experimenting with the HDRs and interior lighting with volumetric fog etc. but somehow Photoshop seems easier but it also means compromising with the quality. What are some of the important steps and settings to be kept in mind to set up a scene like this?
My Work in Progress test render:

Need expert criticism for improvements
Regards,
Centurian