After Mara tells Wolk she does not ask anybody to bow, Wolk's eyebrows disappear for a couple of frames.
When President Pell and Mara are shown walking down the ramp of his flagship, the background behind Pell moves, but the one behind Mara does not.
At the end, Mara asks He-Man "How can we ever thank you", even though it was she who rescued He-Man and the Guardians from the mountain.