Can't create "hero walking" animation

Question

I'm creating a Fez-based HTML5 Canvas game and animating my hero image using sprite sheets. The problem is that I can't create the animation of the hero walking, don't matter how much I try, the output is a weird animation that looks like the hero is just shaking its legs. Can someone help me? You don't need to create the sprite sheet for me if you don't want, just show me what's the correct leg position. I'll post the game link in a comment because I can't post more than two links.

Note that the "hero's legs" are compound by 3 pixels each, that are 2x up scaled.

Here is the sprite sheet:

the walking animation is compound by the 6 first frames.

EDIT: If you fall in the demonstration, open the console, type localStorage.x = localStorage.y = 0; and then reload the page immediately to return to the starting point.

Answer 1

Regardless of the level of details and the number of pixels you have, you must start with a thorough understanding on how walking works. If your character looks like shaking its legs, it probably because, that's all you drew : shaking its legs.

Just search "Walk cycle" with google image and you'll find plenty of examples. Here is a little example of what I would do with yours, where the knee is green, the upper leg is yellow and the lower leg is orange.

It is of course improvable.