(arknights,) 2.5d ultra-realistic style, a charming and mature vixen with black hair, mouth slightly open, white teeth, comfortable expression, tongue visible, elegant posture, with a few beads of sweat on her forehead. viewed from a low-angle upward. on a beach by the sea. soft sand beneath her feet, the blue sea stretching to the horizon, and a gentle sea breeze blowing.the background is blurred to create a cinematic depth - of - field effect, making her the focus of the picture.