Thanks, everyone, for the encouraging comments!
Just posting my current progress on this. Got sick over the weekend and I always get home so late from work, so I couldn't get much done. Anyway, it's moving forward somewhat.
Still working on the lovely lady on our right. Face isn't done yet -- I still have to add more shadows on the bottom of the chin and under the cheekbones.
I must stop this habit of using bad paper! I'm not able to add more graphite layers to bring out the dark shadows more. The paper just couldn't hold so many layers and it is starting to pill on some areas.