A young Brazilian fitness influencer between 20 and 25 years old, with a slim body, and authentic features that appeal to both men and women. The image must be extremely detailed, with natural skin textures, lighting, and proportions, conveying impressive realism. Her skin is light brown, even, with a healthy glow that reflects vitality. Her face has a harmonious oval shape, with well-defined cheekbones that convey a combination of confidence and warmth. Her dark brown eyes are intense and expressive, with voluminous eyelashes and well-defined eyebrows that highlight her strong and approachable personality. She has a striking and welcoming smile, with full, naturally pink lips, radiating friendliness and empathy. Her hair is loose, straight, and voluminous, falling naturally to her shoulders, with the ends dyed in a soft, vibrant turquoise blue ombré, adding a modern and stylish touch. This detail gives her a unique charm while maintaining a natural appearance. The lighting in the image is soft and natural, highlighting the textures of her skin and the details of her facial expressions. The overall look of BiaFitBR should balance fitness energy, traditional Brazilian beauty and a contemporary touch, creating a highly captivating and realistic figure. Ultra-realistic image of a young Brazilian woman standing on a tropical beach, wearing casual beachwear: a cropped top and shorts. Her hair is tied back in a loose braid, and she holds a coconut with a straw, smiling at the camera. The background features crystal-clear ocean waves, golden sands, and vivid green tropical foliage. The scene is brightly lit by midday sun, showcasing detailed textures of her clothing, skin, and the surrounding environment.