I'm using an elephant and a rhino as reference here, if that's not what you're going for I appologize.

It all looks pretty smooth, I can see the overlap from the body to the tail and the weight change and head bobbing is pretty rhythmic.

Two things caught my eye though.  First is your head.  You could show a smoother weight change if you overlapped the x-axis of the head a little later or exaggerated it more.  Right now it looks like it's traveling in a rainbow shape bobbing from right to left and back again.  If you allowed the head to travel along a path more like an infinity shape you could really emphasize the weight of the head.  It looks like it's a bigger problem when it bobs to the left.  Also watch out for that little stagger when it starts to bob back to the right.

The second thing I saw was in your front legs.  They straighten out only on your passing posses.  When and elephant and a rhino step.  They straighten their leg all the way on their contact poses before shifting their weight completely onto that side.  Your legs are bent pretty far by the time the feet make contact.  This means you're shifting your body weight too soon.  Straighten, contact, then shift the weight.

I see good heel to toe motion in all your feet which is good.  I had always thought rhinos and elephants landed flat footed until I saw the vidoes.  That's all I can really see from this perspective.  It's a lot easier to break down a walk cycle if they're in orthographic views.

I hope this helps you out.