Many thanks, Gilliatt. :)
Both images were sketched using a Ticonderoga black #2 pencil. I love these pencils because they smudge just perfectly for my purposes, nice gradients. The price is right, too. I go through over a hundred a year. Cheap, school grade #2s.
Something I should probably share, I don't scan my photos. I photograph them. With the first one I used "picsart" editing software to play around with color. The picture was going to be thrown away, so I was just experimenting with new digital color tools. Picsart has some nice features, but I couldn't quite make the picture into something polished enough. Still, I had fun.
For the second picture I returned to my often used vignette filter, which just darkened it up around the edges. I'm pleased with the results. It helped that I was sketching such a lovely model with life experience etched in her face.

