Thanks to you for your kind words.
I have never taught anything that has to do with art or drawing, so I improvise (and learn) every day, however, when I was young I made a living for several years giving private lessons in math and physics.
It makes me very happy to know that you enjoy my drawing lessons and that they are useful to you, there are many things that I did not know I knew, and there are many others that I'm learning and that makes me very happy.
Greetings to you and for myskye.