He's a high school teacher, so he just used google. Surprisingly it didn't block your picture (my school blocks dA)

thanks for all the great tips, they look very interesting

Ah yes, it is as you say, important to be able to draw gesture well, because I too use alot of stiff construction lines in my drawings to begin it helps with loosening up.

BTW, have you heard of a observation drawing method called ABC? It stands for angle based construction, and as its name implies, you plot out landmarks by using angles, simplified, its almost like a "connect the dots game" However, I´ve found it´s a really good method to be both accurate and quick when doing observational studies/underdrawings. It really simplifies the construction phase down to its simplest components and looks very clean too Ofcourse, I´ve just scratched the surface of this method by drawing still lifes to begin with, the human body of course is more complex. If you´re interested to know more, get this book: "Drawing in the Digital Age" by Wei Xu. It is a bit scientific and quite dry on some parts, but it uses some of the concepts from 3D modeling applied to the drawing field so to speak. Things like, extraction, trigeometry etc. It does have a little math in it, but like 95% is thinking in angles

Iam happy to announce that I´ve started to make black and white studies to get my values to improve. I try to make it so I paint one every day of a still life or other object with one light direction to begin

Keep drawing Vimes, you´re awesome and such an inspiration to me! I´m sure you´ll teach me alot more in hte time to come ;D