graph TD A[Card Assembler Subagent] --> B{Load pre-designed birthday card layout template} B --> C{For each slogan-image pair 3-5 in total} C --> D[Insert slogan text into the template] C --> E[Insert image into the template] C --> F[Adjust layout as needed] C --> G[Create final card design image] C --> C G --> H[Save assembled card designs] H --> I[Pass the final card design images JPEGs to the Output Renderer subagent]