graph TD A[Receive 3 AI-generated illustrations and 3 humorous slogans] --> B[Use GPT-4 to generate JSON template for Bannerbear] B --> C[Use Bannerbear image creator to compose 9 birthday card designs] C --> D[Save composed designs as image files on internal server] D --> E[Resize 9 composed designs to 1200x1800 pixels] E --> F[Save resized images as high-quality JPEG files on internal server]