Awhile back I did this master copy: http://forum.svslearn.com/topic/435/rockwell-master-copy
Well, now I've done another. I actually started it a long time ago and have been chipping away at it, and even though it isn't perfect yet I think I really need to move on--I think I learned what I needed to learn from this piece. Mainly I learned that I don't know nearly enough about creating and manipulating brushes in photoshop--no one like master-of-brushwork Leyendecker to teach me that! So I'm totally watching Lee's photoshop brush class tomorrow.
Progress photos of creating this are here: http://www.sarahluann.com/blog/leyendecker-master-copy