u/Full-Shoe6252

I have this room model, and the mental image i have from it's lighting is an Dark blue starry sky that fills up the sky, and softly get's into the room, lowkey iluminating all the objects in there. But, I honestly have no idea of how to make it. The first image is the actual model, the second one is how i'd like the colors to be and the third one is a mere reference that kinda match the idea i have. Could I please get some lighting advice?? :heartbroken: