If you go through "My Portfolio," click on the speech bubble that is pink.
You will see comments from the teacher under "General Comments."
Look at the text of your writing and look for colored text. That is where the teacher has embedded a comment. Click on that colored text.
You will then see a pop-up with the embedded comment.
If there are many general of embedded comments, open a second tab for editing your writing so you can look back and forth between your writing and the comments.