Assessment wanted for Marking up a letter by Rafael Maia

Hello guys! So I’ve been studying HTML through MDN’s guides and this “Marking up a letter” is an assessment for when I reach the end of the first module.

I want some feedback from other developers to know what I could improve in my code, especially regarding whether I used <main>, <header> and <footer> correctly.

You can see my code on CodePen and the Assessment page on MDN.