Your walk looks rather robotic, instead of bobbing the head a little, you just squashed and stretched it some, while that looks ok, there is a lot of movement that is missing. The torso doesn’t move at all, the fingers are quite wooden, and although it is a personal thing, his feet seem to be lifted too high, we generally only lift our feet high during a sneak or stalk. His pace is very smooth too, and people generally don’t move so smoothly. Also I would have tried to extend the foot a little past its contact point and then let it fall a little back to give him more weight. I’m not saying it’s bad, just that there are some more tweaks needed. I know I’m no master animator because of my stupid hands, but I do have pretty good eyes, and I’m working on that other part, a lot of that comes from traditional drawing and animation. I think you would see your animation improve greatly by reading through Richard Williams “Animator’s Survival Kit” and a lot of the links in the Sticky in the animation support forum, there is a lot of information, it generally agrees with each other and is by the masters, so you know it’s good.
I’m downloading the tutorial now to see some of your techniques, and I will try to give some more help, I’m not sure which features you’ve used yet, but I know that Blender probably has some tools that you haven’t thought about yet that would greatly enhance your animation. Thanks for putting this together, it’s a good resource, but I think it could be better.
**EDIT–I think your link has an extra / in it.
**EDIT2-I’ll just put what I had in a new post.