Dear Sergei,
My 2nd semester Course will be Open, so, of course, you can freely attend it. On the othe rhand it will be included in the programme of International PhD courses, so this exam may be useful, if you have some plans to enter it.
My comments are in the attached file.
I am asked to put some intermediate control marks, and you have definitely deserved 5-
With the best regards
M.Yu.Khlopov