No problem at all! It's a lovely portrait. I often struggle with contrast so admire your skill. I, too, tend to work with light and I tend to pay a lot of attention to feelings/facial expressions as well.
True, Cumberbatch really does have an intriguing face.
Thanks again for all your comments and faves! I'm honoured to receive all this from an artist as talented as you. I'm not nearly as talented as you.