Figure alt text read in incorrect order

I am trying to ensure the screen reader accessibility of pdfs for an online class. I am having a hard time getting my screen reader (NVDA) to read the attached pdf in the correct order. I have made sure the accessibility tags match the reading order as shown in the screenshots. Currently my screenreader is not reading the way I have set it up. Specifically, the figure alt text is being read halfway throughout the main paragraph section. Instead of after the Meet the Authors heading. Could you give me any pointers on making this document screen reader accessible?