I hope you like it.
render time on Cycles (CPU) - 22hours.
Work in Blender 2.75, Photoshop
Beautiful. It made me think of this TV series, Bleach. I love how you did the cloth wrinkles. It is believable. Also like how you did its material too, some streaks of faint lighter grey there and there. I love his pose. It’s like he’s contemplating on what to do next. 
Nice background. I only wish I could see more of it and see what he’s facing against, but that’s just me. Well done!