Reminder again that posts like this belong in the #artwork section.
Animation’s hard, because it’s not enough to just know how to animate, the component drawings also need to be good for the whole thing to look good. You’ve got “movement” already, what you’re missing is the anatomical knowledge of how walking works - how the legs bend, how the position of the legs corresponds to the position of the torso, how the hips twist as the legs move.
Look up videos of walk cycles and study them. There are walk keyframe charts available to highlight what to look for. Looking up “walk cycle reference” will get you plenty of both.