These were done at a drawing workshop I've been visiting called The Drawing Club. The theme was "Samurai".
If you are an artist in the LA area this is a great weekly break to do some fun drawing... check out thedrawingclub.com There's three hours of short poses every week with a new theme, a costumed model and props... they even have music and movie footage playing that go along with the theme! Great for people in animation or comics, or anyone who would like to incorporate a story sense into your figure practice.
I have a few more of these posted at my deviantart page.