Face or drawing people is a part of the human body that has many expressions, this makes it give many variants and difficulties when we paint, therefore many suggest when trying to paint, try to paint from the face before we can learn other parts of the body.
Even though it sounds like a basic technique, many professional illustrators use this technique when making works, besides, this technique can be applied in various situations and is quite easy to learn.
In addition, the face is the most frequently used object to develop visual abilities in realist drawing, so it is very important to learn to paint faces first for beginners.