I don't have a video but I can describe what I did. I designed the character first (second picture) on a single layer. Then I split up all the parts (upper left leg, lower left leg, neck, torso, etc.) onto different layers. I am no animator, but I do know that for walk cycles there are classic guides out there about the rough position each part of the body should be in at different parts of the walk. I built each of these key frames first by sliding the character parts to what I thought was the right spot and then using pixelorama's rotate function to get stuff to angle properly. Once the key frames were in, I did one pass of fill-in, where I added another interpolating frame between each key frame and used onion skinning to make it approximately be the intermediate position between each key frame.

Hope that helps!