graph TD A[Start: TShirtDesignSubagent] --> B[Receive Input Data] B --> B1[Extract Original Data] B --> B2[Parse Trademark Analysis] B1 --> C[Initialize Prompt Creation] B2 --> C C --> D[Generate Design Prompt] D --> D1[Apply Safe Keywords] D1 --> D2[Include Style Guidelines] D2 --> D3[Add Dimension Requirements] D3 --> E[Start Image Generation Loop] E --> F[Generate Image 1-12] F --> F1[Create Base Design] F1 --> F2[Apply Text/Graphics] F2 --> F3[Resize to 4500x5400] F3 --> F4[Verify 300 DPI] F4 --> G{Quality Check} G -->|Pass| H[Add to URL Array] G -->|Fail| E H --> I{12 Images Complete?} I -->|No| E I -->|Yes| J[Compile Final URL Array] J --> K[Quality Verification] K --> L[Return Array of 12 PNG URLs] L --> M[End: TShirtDesignSubagent]