Untapped potential? Maybe, but it's a good start
The graphics were on-par with your other work (high class with a little roughness) and the sound was too with clear music and sfx: it's good to hear minimal static this time (if any), but the vocals could have been a little louder.
It's a nice teaser you've done here with this short movie (first episode perhaps?) with a story and characters that show potential if it all develops and fleshes out well if you continue with it.
For me this was untapped potential, but it's a good start: I hope you bring more of Valhalla Knights to Newgronds. I'm keen to see more. :)