A painting of a mermaid with long hair and a fish tail

((masterpiece), best quality, high quality, professional quality, highly detailed, highres, perfect lighting, natural lighting), mermaid, blue fins, wearing starfish bikini top, swimming under the waves

((extra fingers, deformed hands, polydactyl, extra limbs, deformed feet, deformed face, poor anatomy):1.5), ((low quality, medium quality, amateur art, watermark, signature, text):1.5)