So many things make it nearly impossible to mimic architectural photographs. Assuming these are photographs. From the environment outside of the frame of the photo, to the many tricks a photographer would use, not the least of which is Photoshop.
The lighting looks like late afternoon hazy open sky with the sun bouncing off the opposing white building outside. There is a window upstairs allowing light in, as well as the balcony door.
The shadow, at least in part, is caused by the staircase and ceiling ductwork. I don't see any telltale signs of any secondary lighting added.
Great respect for the creator of these images. (I kind of think they are CGI) They are absolutely flawless. If they are CGI, the attention to detail is superb. If they are photographs, the cleanliness is impeccable.
Okay wait a minute, is that last image posted above, your CGI render? Looking again, I see differences. The caps on the wine bottles are different and the dogs are floating. If so, very nicely done. I was making some assumptions on lighting based on that image.