im not sure about your intentions bc you said you want to paint a dark scene but it's quite well lit. the light on the top left and bottom are quite prominent. You need enough contrast to show darkness, so it will be hard when you're trying to portray light everywhere. i would suggest focusing on the red light so the img will have a clear gradient of light to dark. For the value difference in intrinsic colors, it is subjective and you have a lot of leeway for value change when the object is lit by light. The contrasts varies depending on what effect you want to achieve but if you're really unsure, its good to find refs to get a grasp on how much you can modify it. also, adding blue to the background will make it look at night, so the brain connects it to darkness even if it's not that dark. The colors on the previews of what i uploaded looks a bit off so im not sure how it'll turn out. | Artwod Feedback