Hy, after a two years break , this is a rendering made with Blender and Cycles.
Good job. Love the glass on the windows. Congrats.
What kind of lighting are you using? Are you using an HDRI?
Looks great The light is very nice. I’m also Interesses in how you made it.
I just put aera lights (no portals) and a sun. I used a “sky texture” in the world. For the environment, I used a 360 ° textured cylinder.