As someone who have also seen my fair share of portfolios (used to run a fairly large design agency in Denmark) I am trying to understand what part is of your critique is constructive.

It basically boils down to. You are no good enough. This is hardly constructive criticism at all thats just criticism.

I will gladly forward his portfolio to anyone looking for an intern. It should be fairly easy to assess in an interview whether this guy is the real deal or not. And if he is he got a great future in front of him.