Agreed, painting red hair is so fun! That and honey gold would be my absolute favourites. I did a painting a little while ago where I tackled the difficulty of painting black hair, I'm not sure if it's "the thing to do", but I found that using blue for highlight and mid-tone throughout really helped give it the nuance and "vital glow" that would be associated with luxurious black hair. Anyways, that's by the by, keep up the great work, can't wait to see your next update!