你好!请问为什么我生成的图片这么差   <img width="768" height="768" alt="Image" src="https://github.com/user-attachments/assets/cee7ecbe-e83d-4fa9-b5dd-26be6057d512" /> "object1": "bear", "object2": "bird", "composite_prompt": "A bear and a bird in a forested riverbank setting."