can you slow it down a little so I can see if the walk-cycle is current (remember that four legged animals walk basically on alternating tripod).
There is a few tricks i discovered while doing this:
1.) the left side works in tandem, as does the right side, so its better to draw them first.
2.) the front leg lifts up slightly before the back leg.
3.) as the the leg lifts from the ground to move forward, it moves in a halfcircle from the ground.
4.) to maintain the depth, the two legs furthest from you should move in a halfcircle where the leg meets the body, the two legs closest to you should remain static, but further up the flank should indicate movement. this gives it the illusion of depth.