knight, ancient basin, fountain, Hollow Knight character, insectoid armor, nail sword, standing, solemn pose, dark cavernous environment, ancient architecture, stone structures, moss-covered walls, dripping water, ambient lighting, eerie atmosphere, long shadow, side view, 3/4 composition, detailed texture, metallic sheen, reflective water surface, underground setting, atmospheric perspective, soft diffused light, high contrast, game art style.