First, consider your students. From my experience, most will be beginners and they'll be taking a break from work which means the class has to be quick. If you want to keep your students coming back, make sure it's fun, beginner friendly, and keep the woo woo to a minimum. I can just picture a bunch of accountants (no offense) that get scared away from yoga because the teacher talked in Sanskrit 90% of the time while delivering astrological readings and "tuning everyone's chakras." In other words, keep it basic. Maybe even consider using chairs as props if you don't have a dedicated studio space or much time.