Hey. Looking good so far, but still seems a bit stiff. You can add more dynamic and realism to this running cycle by moving the upper body with the motion. This can be applied by moving his shoulders with his arms for instance. So when his right arm goes forward (frame #3) his right shoulder should come to the foreground, too. At the same time the left shoulder should get more into the background. Also move the chest with it: Just 1 pixel of shifting it will do the job.
Also frame #6 should be flipped horizontally as there is the wrong leg in the front.
Keep it up! :)
Thanks for this feedback ! I worked on it since I posted it here and I just wait approval to edit with the last update ! I worked on torso and legs movements, and on a body bent down to follow the natural movement of the body. Ah, I worked on the "jump" movement of the body when we run. In fact, I add a jump effect. You'll see it in the last update. :)