prompt: a masterpiece, best quality, ultra-detailed, 1boy, a handsome male ocean deity, long dark blue hair, pure green eyes, wearing an elegant flowing dark blue aquatic robe. he is half-submerged underwater, looking down with a cold and indifferent expression. surrounded by smooth dark blue mythical octopus appendages with glowing blue ring patterns. beautiful water caustics and ripples reflecting on his face and collar. floating water bubbles. a hand with a silver ring reaching forward. dark deep sea environment, dark fantasy, bioluminescence, highly detailed, cinematic lighting,