If you search for the experience, you are looking for his "Digital Art for Beginners" YouTube series combined with his free brushes and the "1-2-3 Process" tutorials.
While the full 10-term ART School is a paid product, Marc Brunet is incredibly generous with his knowledge. You can essentially build a high-grade, free DIY art education using his public resources. 1. The Ultimate YouTube Channel marc brunet art school free best