1girl, solo, underwater, undulating sea serpent, scales shimmering with pearlescent hues, emerald green eyes, flowing dark hair, serene expression, graceful pose, soft ambient glow, coral castle ruins, deep blue water, bubbles, seaweed, shallow depth of field, Alphonse Mucha Arkstyle

lowres, worst quality, low quality, bad anatomy, bad hands, text, error, missing fingers, extra digits, fewer digits, cropped, jpeg artifacts, signature, watermark, username, blurry