i like the constant motion that exists in the movie, its a sign that this is a fast-paced, and swift animation. ( a GOOD sign!)
also, i like how you drew the cool possum's face/body/style, he seemed very cool, and i liked that his eyes and his mouth were moving, to match his expressions+the voice-acting.
overall, the lip syncing was GOOD, and the whole animation was detailed, nicely animated, and nicely drawn, with a clever use of that specific voice-clip.
(with good lip-syncing too!).
very good short movie, you have skills bro, plz do more, and keep up the good work!