A Portrait of Contrast; 'Anonymous'

I've been doing a lot of thinking lately, and I observed that my sketches are lacking the depth I so dearly love. And as a result, I resolved to use only my darkest pencils for my sketches. For today's sketch, I used an 8B Stædtler from the outline to the finished work.
It was fun making this sketch, blending the tones together, trying to create a little contrast in the process.

I'd really appreciate your comments, Thanks in advance

....the outline....

It's nice to have you, thanks for the visit.