Cubism drawing study

After the study of Minimalism, I drawn to the shapes and I started studying the method of Cubism. Tom taught me in his study, he would draw a basic facial structure, and break it up with a few lines, then put in the shades in order to indicate the lines and the shapes.

I have done some practice, and I found that cubism drawing is a very slow process, which I found medicating. I decided to take it to the next level, start working on a painting with cubism style.