Prompt:

Please help me design a flat UI picture of a beautiful girl wearing a college graduation gown holding a scroll in her hand,Facing the audience, full body --ar 9:16 --v 6.0

請幫我設計一幅扁平化UI圖片，內容是一位美麗的女孩穿著大學畢業袍，手中拿著卷軸，面向觀眾，全身展示。