Mermaid with horns floating in the water with fish around

a mythical creature,a creature with the head of a bull,the body of a fish,the tail of a snake,wings on its back,swimming in a river,(best quality,4k,8k,highres,masterpiece:1.2),ultra-detailed,(realistic,photorealistic,photo-realistic:1.37),highly detailed animal,intricate patterns,dramatic lighting,fantasy creature composition

worst quality, low quality, bad anatomy, bad hands, bad body, missing fingers, extra digit, fewer digits