The rest of the article on The Pianist and Schindler's List is excellent. Please finish reading it critically, asking yourselves what he's saying and why he's saying those things. How does he develop his argument? Notice the little things like tone, style, transitions and thesis statements. How does he conclude? Then, after having finished it, read your peer's paper and see what kind of suggestions you can make that would make their paper as good as Sheppard's. Put Sheppard in his place. Show him how it's really done.