Angry Chimpanzee - Pen Drawing

Hi all, greetings and happy Sunday!

Here is my new artwork from my animal series.
Once again, I tried out another pen drawing of a Chimpanzee.

These species of animal possesses some characteristics of human behavior and to me they are really fun to draw - especially those their expressions and the rigorous strokes moving around their faces to build forms. Even though creating their furs are tedious, I do enjoy them.

Here, I drew an angry looking chimpanzee holding two small sticks with its mouth wide open as though it wants to shout. Someone must have provoked him.

The drawing was done with a blue ballpoint pen on a cardboard paper using scribble style. You can see my steps below:

Thank you.