Hi @Haizhen Wang. I think your notes, and the drawings in them are good! The most important part of your drawing training is practice. After you´ve made these notes, make sure you do the assignments, so that you can apply what you´ve learnt. The assignment for this part of the course is to: Draw the Nose Take a picture of your own nose or find some good photos online (get some with clear light and shadows). Follow Stan´s step-by-step lesson to complete the drawing. Rewatch the lesson to review all the anatomical details. Those take a few times to understand. (https://www.proko.com/course-lesson/how-to-draw-a-nose-step-by-step/assignments ) If you haven´t done the assignments for the eye yet, do that too. Hope this helps and good luck :)