The thick lines are appealing, as well as the strong shapes featuring strong silhouettes. The composition of the scenes is well-placed.
Starting the movie straight into the action is really good, as it fully communicates the character, their actions, the universe they inhabit, and establishes the rules of that universe well through visual communication.
I enjoyed that the announcer's voice is not completely drowned in bitcrush, and the other characters do not have this effect. I feel it makes it more engaging and adds a good level of variation and contrast to the narrative.
And the ending title screen is not too long and it ends on a good melody.
Sadly I have not played Gauntlet 2, though I have played Golden Axe.
Your movie is amazing!