Well... I was on vacation for a while, so I had a chance to practice some drawing. I did one on my vacation that makes me particularly happy: I really am learning how to draw well just from reading this book and practicing! [Read it; you can draw too! Drawing on the Right Side of the Brain]
Before I show you that, though, here are the practice drawings I did just prior to leaving for my vacation. Lesson: sighting proportions and angles correctly yield accurate perspective renderings.
Click on an image for a larger view...