Here is drawing who took me about 5 minutes. It is just a practice drawing, but when you want to try to draw nose and mouth here is some tips.
I used a normal pencil but you can also use a pen, but be carefully and make a sketch before you use the pen. Try to study humans and animals at the details. that can make you understand more and maybe draw a little bit better.
when you want to draw more step for step or practice drawings, please comment.
I hope you like it!