A mermaid with long hair and a tail is standing in the water

Highly detailed, masterpiece, high quality, pretty anthropomorphic mouse girl magically transformed into a mermaid, fantasy, race change, smiling, anime style, mouse ears, long mermaid tail below waistline, pelvic and dorsal fins, a pair of fish gills on her neck, seashells bra, pearl earrings and bracelets, pearl necklace,

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