Other mistake: When the villagers return to their homes, Po is seen emerging from an alley obscured with dust. In the shot where we can only see his profile, Po's "cape" is blowing in the wind, but the dust does not seem to be affected.
Suggested correction: You'd have been correct if the only inconsistency was a misaligned cloak. But that scene is far too elaborate. At first, we see a stereotypical legendary warrior in a long cape and straw hat pacing through magical dust. But soon, Po's figure transforms completely; even the dust vanishes without leaving a trace. I think what we see is either what the villagers thought to have seen or a mirage that the magic dust had cast.