Body hair W.I.P.
I think the key to draw human body hair in a beautiful way is to capture its "flow". Therefore, I've been referring this chart recently. The map of “human hair streams” by Dr. Walter Kidd in 1902.

BTW, I really love how Gengoro Tagame sensei draw human body hair. Hmmmm, it might be a good idea to ask him about that next time.