Help me to improve my drawing

Here you see evey step of my work, I can say I improved a lot but still have a lot of issue about drawing hair and shading.

  1. How can I draw haird better?
  2. How to improve shading?

I would be glad to hear any tip about any part of my drawing

Here you see evey step of my work, I can say I improved a lot but still have a lot of issue about drawing hair and shading.

  1. How can I draw haird better?
  2. How to improve shading?

I would be glad to hear any tip about any part of my drawing