A graceful, bioluminescent Urch-dragon with scales like polished obsidian slides silently through the dark, cold waters of a submerged, derelict arcology at the bottom of the ocean. Its large, intelligent eyes, the color of molten gold, trail faint streams of light as it surveys a single, shimmering alien bloom clinging to a decaying girder, the distant glow of its fins casting ethereal patterns on the rusty, barnacle-encrusted metal. The scene is suffused with a deep, unsettling blue light, emphasizing the creature's fluid movement and the eeriness of the deep-sea ruin, with an energy level of 2/10 and warmth of 1/10, rendered in the Geometric - CE style with sharp, angular forms and a stark, high-contrast palette.