"Create a highly realistic and vibrant full-body image of a character named Sigma Sweetie. She has long, flowing hair, styled in soft waves, and a gentle, confident smile. Dressed in a stylish yet comfortable outfit—think a chic blouse paired with sleek jeans and simple accessories. Her posture is relaxed, conveying warmth and approachability. She stands in a modern, cozy setting, perhaps near a window with soft natural light streaming in. The background should be calm and minimalistic, focusing on her positive, lively energy."