@arev Glad to see you figured it out! Good job too. I’ve got a couple notes:
While the environment texture in the window matches the lighting well, it kinda looks like the room is in a floating house. Or in heaven. Maybe that’s what you’re going for, but if not I’d recommend a texture that shows a little bit of terrain as well.
In both the night and day scenes the colors are a little muted. I suggest you get more blue into the shadows of the day scene, a little more warmth (orangy-yellow) in the sun light, and more orangy-yellow in the lamps of the night scene.
Still it’s good work this week. Certainly worthy of an A 👍