Create a hand-painted portrait of Princess Nanyang, the Sui Dynasty princess, capturing her unique charm as a royal sister and beauty. The painting should feature her in a crimson skirt, with an exaggerated updo and a towering bun, making her appear bright, elegant, classical, and dignified. Incorporate Sui Dynasty elements into her clothing, giving it a distinct and unique style that reflects the richness of the era. Ensure her upper body fills the entire screen, showcasing her fair and shiny skin, and creating a sense of pure and classical beauty. The composition should evoke a strong Chinese style atmosphere, emphasizing the elegance and grace of the Sui Dynasty.