An anime-style illustration of a 26-year-old introverted woman with short, slightly messy hair, heterochromia eyes (left mint green, right red), wearing black street casual fashion (hoodie, ripped jeans, sneakers). She is standing alone on a quiet winter street in a modern city, looking up at a vast, vivid blue sky. The mood is cold and a little melancholic, but the sky feels bright and almost like a symbol of hope. Strong winter sunlight, sharp shadows, with a color palette of white, blue, and gray. Her expression is neutral with a subtle, faint smile. No hat, no accessories, her hair is gently blowing in the breeze. The sky takes up more than half of the composition. Anime art style, clean and detailed lines, soft shading, vivid but slightly muted colors.