To say thanks to you commenting on my work, I had to repay the time, effort, and favor! :)
First of all I have to say your hands are great - I am really jealous. I'm too scared to go that far. The positioning of the fingers seem just a tad off - he seems to be gripping a very narrow part of the sword - and it seems like it could be round. Try spreading the fingertips out a bit to give more of the effect of grasping something flatter and wider.
The left arm looks wonderful - the positioning and everything, so perhaps on the right arm, change the angle a little to grasp the effect of the elbow being further away. Bring it in to the body just a bit.
It also seems as if the hips are a bit narrow to the shoulders - it could just be the armor.
Next just as a helpful suggestion, take a look at this ever expanding website: http://itchstudios.com/psg/art_tut.htm he has GREAT advice on speculars and lighting - especially for metal - it's amazing.
My next advice would be to get Loomis' books - http://placidchaos.com/AM/index.php/2006/02/21/andrew_loomis the best one to start off with to at least read through would be Figure Drawing for all it's Worth.
Otherwise it's a spectacular piece, there's many amazing points about it, just keep on truckin!