Family Sketch Commission - Grandmother

Well the grandmother is starting to take shape but still a ways to go to adjust the likeness and complete the range of tonal values. Many adjustments need to be made but I think already her warmth is coming through. Of course I am adding much more detail than I should for a sketch rather than a full portrait but I just can't help it :) So far I have used 2B, H, and B graphite pencils.