Ben Zingo:

Both characters look very angry through the scene, which seems like an odd choice given the audio. Movements are also very sudden and abrupt. Try offsetting some of the limb movements to give a more natural feel, and act out the movements in front of a camera to give yourself reference! Also be sure to ease your keyframes, that may help with the abruptness of some of it

Richard Felix B. Candia:

I would suggest looking at references about expressions.