My drawing maybe not simplify :(. Here is my work.

Package 1 with 10 heads, Fuck perspective, it exercise is harder than I thought and it looks so easy, the view since the chin it´s the most complicated for me, I don´t even understand how to do the line of the mandible, and I don´t understand how to give the perspective in the oval, the front views are not too front either jajja I´ll keep practicing.