Abyssal Shadow Creature in Digital Underwater Realms

An ethereal shadow creature glides through a deep underwater realm. The being is an amorphous, inky silhouette with wisps and trailing tendrils, its edges edged in electric cyan and emerald glow. It moves silently among coral reefs and hanging seaweed, with shafts of sunlight piercing the water and scattering into sparkles around it. The scene is rendered in digital painting style, with smooth gradient shading, soft glow, and crisp neon highlights. The water is dark teal and cobalt, filled with floating particles and bubbles. The creature's void-like eyes shimmer with faint stars. The composition centers on the creature swimming toward the viewer, balanced by a distant school of fish and glowing coral. Add subtle caustic light patterns and volumetric fog for depth. Ultra-detailed, high-resolution digital art, cinematic lighting, painterly texture, 16k-ready.