With the bottom gif, I'd just say that the follow-through after landing just needs one or two extra inbetweens to smooth it out. The bounce has nice flow with the floppy ears and arm movements, but then after going back into neutral position, the ears look like they're made out of stiff cardboard in comparison.
Even if you have the body snap cartoonishly back to neutral, having some secondary action with the ears to keep the floppy ear feeling going would do wonders to boost the quality.
Otherwise, a solid effort. :)