Well... Some critics...
I wouldn' t use a stickman...You can't know which leg is closer to the observer, same with legs... I would use a 5 colour guy... red and dark red for the arms, black for torso and head, blue and dark blue for legs, the closer leg to the observer the brighter... Also, remember that white background is not your friend... When you colour, you' ll think the colours you are using to colour your guy are too dark, and you will use too much contrast (Contrast? I might be pissing off here, I still lack of approppiate terminology) to "fix" that... which would be an error.
Then, you seem to have some problems with anatomy... forearms seem to be too short for me, for example.
Your guy does a horseshoe when does the recoil... soften that a bit... Also, I would never move the torso to left and right in my animations... I mean, I could "move" the shoulders, showing the chest of the character a bit in the contact frame, the back a bit in the other contact frame, but that's moving the torso through an axis that remains quiet... You move the "axis" of the torso. I *think*, (unless a more experienced artist contradicts me) that' s a no-no.
For me, it seems that you "imagined" what a person do when walking, and you made it... Which shows that you have good eye for animation, because you basically nailed the typical poses experts use to make a walkcycle, congratulations, but I would encourage you to research a bit and nail it even more... One reference I like to use is the famous:


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I come here humble, trying not to repeat the mistakes of the past, for improving my art and try to help the others improving their own when I can...