Hey there, no reason not to start getting crits this early on!
You know, I know there's a bigger focus on modeling, but more and more it seems animators are making apperances here. Let's try to keep this trend going!
The walk cycle looks like a good start! My biggest issues right now are with the torso, hips, and arms.
-The torso and hips just do not have enough movement to them. It makes the animation overall seem very stiff. The hips should be following a circular rotiation. It looks like it might be in there a bit, but try exaggerating it much more. For the torso, have the lower half following the hip movement, and the upper half opposing it. Also, there should be some up and down in it as he takes weight and then goes into a hangtime.
-The arms are okay, but they look like they move too much, especially since the rest of the body is doing such a calm walk. If it was a more energetic walk, bigger arm movements would make more sense. Also, more bend in the elbow and drag in the hand would improve it too.
-One other thing I noticed is there's a spot in the foot where it pops, just as it's about to rise off the ground. The feet must keep following an arc. Right now, as it lifts, it looks like it breaks out of it and moves forward too sharply.
Hope that was helpful. Keep going with it!