Please analyze Schwanengesang XIII, "Der Doppelgänger," I'm going to ask you to print this one yourselves, sorry for the inconvenience. As before, write in a translation - this song is one of Schubert's most emotionally intense. Harmonically, be on the lookout for augmented sixths, Neapolitans, etc. Lots of good stuff here.
I would also like you to read this article by Richard Cohn, "Maximally Smooth Cycles, Hexatonic Systems, and the Analysis of Late-Romantic Triadic Progressions" from Music Analysis, Vol. 15, No. 1. (Mar., 1996), pp. 9-40. This is a tough article with lots of math; but you can skip the math and still get the main point. It's a clear introduction to the hexatonic cycle, with some great examples from Brahms, Mahler, Wagner and others (not to mention some ingenious stuff about enharmonic spelling, which we've already encountered with Schubert).
If you have a question about the article please post it as a comment below, and I'll try to answer if I can (but you're not required to comment on this post).