First off, I found this awesome tool from Scribblers for printing practice pages with calligraphic guidelines. Set your own ascender, descender, and x-height, and spacing between guideline sets. Now how cool is that?
This session I tackle r, t, h, and b from the second set of calligraphy exercises. See how there are two kinds of r? That second was a bit difficult--it just doesn't feel right to me.