(medium full shot) of (peculiar silver aquatic creature) with mottled skin

(medium full shot) of (peculiar silver aquatic creature) with mottled skin, shell-like armor, tentacle-like fins, fangs, additional fins, luminescent eyes, adorned with ancient barnacles, set in a mystical sunken ship, with hidden chambers, glowing flora, tranquil ambiance, hidden beauty, during twilight, Masterpiece,best quality, photo, realistic, very aesthetic,