Movement doesn't work that way, he is mostly just moving one arm which would be incredible ineffective and impossible to maintain balance with.

If you want a really dark atmosphere you absolutlly need dynamic lighting, it doesn't work without it.

Same as Jawnsunn, the sword upward part is effing cool, the rest could use a bit more work to smoothen it. 

Still waaaay above my actual animation skills, congratulations. 

The walking animation needs more upper body movement. And his leg needs to be lifted up a bit more.

That sword upward anim is really nice. A bit more force upward and it will be perfect.

also, put a little bit more contrast into the colors, especially on your reds and grey highlights. No point in keeping them there if they are going to be that dark.