I think that you do a very good job with setting up the scene on how the interview felt to you and what you wanted to learn from the interview. However, you did not include transcripts of the interview which would have helped the reader to fully understand what kind of person Mr. Washburn is. Also, instead of going with the memo heading, maybe a cover page would help make it seem more professional, as would a header with the title and page number.
Suggestions for improvement to Interview Report
I think that you do a very good job with setting up the scene on how the interview felt to you and what you wanted to learn from the interview. However, you did not include transcripts of the interview which would have helped the reader to fully understand what kind of person Mr. Washburn is. Also, instead of going with the memo heading, maybe a cover page would help make it seem more professional, as would a header with the title and page number.