You're a natural at it whereas I struggle with portraits. As I was learning I used to draw food/fruit&veg and animals etc. I felt like I was getting somewhere until I tried drawing myself. That failed badly. I'm still learning tho so fingers crossed eh.
I definitely will attempt it soon however I'm not brave enough to try it on canvas like yourself. I'd only make so many mistakes. The thing I worry about is not getting gbthe features right which is enough for the subject to feel offended. Perhaps I think about it too much.
before that it was so frustrating, i've destroyed a lot of canvases in sad attempts.
you can definitely learn to do portraits, and remember to show me the works
might i suggest drawing Florence Welch?