Very nice. The window lighting looks good.It's the same lights on in both. The brighter light coming from the door is more visible on the character from the side of the bed camera angle.
What I'm really doing here is teaching my self lighting by building a setting that I can try different characters in various poses and positions in the room. I've watched a few DAZ lighting tutorial videos but nothing beats playing around with it myself. (For example, I'm using Olympia 8 in these renders. She has a more olive Mediterranean skin tone. So once I'm done checking all the lights with her, I'll try a character with a paler skin tone. Then maybe after that one with a dark skin tone as well.)
Here's another view of the room with only the sunlight on and all the interior lights off.
And an image with both the ceiling light and the door light on, and all the others off.
You are ahead of me, I have barely started looking into it. I have made a lot of characters, but only built a couple sets, and didn't do much with them yet.