This was done from a model about 6-8hrs. I wish I could have put more time into it. I'm still not happy with the head or hands. They are laid in alright, but still need some work.
Here is a graphite drawing that I started as a demo in our Long Head Drawing class. The poses are usually about 9-12hrs. I encourage the students to work from a photo at home because this particular method is a slow one.
These were done in a class I took a few years back. These were done in oil. The top hand is a study from Fechin and the bottom one is a study from Sargent.