Whenever you're ready! The lessons are available online any time, and your access to the class never expires.
Rob Zeller draws and paints from a cast of Michelangelo's "Guiliano de' Medici" sculpture. Purchasing a cast of your own is optional, and resources to buy the cast can be found in the downloadable class materials.
As long as you need! Your access never expires, so you can come back again and again.
Ask your questions on the platform and you'll receive instructor feedback. Your fellow students are also likely to jump in and offer advice from their experiences.