Charcoal Triptych

Charcoal Triptych, Charcoal on Paper, (9.5" X 21") (9.5" X 7" each) 

I love doing these charcoal studies. They are not very time consuming, an hour for each and are a great exercise in values. I mostly use pictures I find on the internet that are not copyrighted. 
All comments are most welcome.