Just found this thread. I'm a big fan of the dwarven looks of the Hobbit movies, despite the story changes and character alterations Jackson did and I have to admit, the first pic you posted tricked me into thinking this was a movie still (first pic, first page, the one with the helmet). Impressive work.
I'd like to ask if you could provide more details or maybe a link to a tutorial on how to achieve this metal surface ? You mentioned wood glue in an earlier post.
Khazad ai-mênu !