Quadruped creature rig test


Hey everyone, I have a quadruped creature that I have rigged and skinned and have already proceeded to do animations on it. My university requires me to do a rig test to show that everything is functioning correctly and to also see the full extent of the rig.

I had made one but my facilitator told me the legs were sliding when I animated the spine movement. I have no idea how to show off most of the movements without having some weird movement in the body.

If anyone could advise me or send me reference videos of quadruped rig tests, that would be very helpful.
Thank you