Needs some work for sure, but the concept is cool. Main issue is that the character walking feels very stilted and choppy (and doesn't seem intentionally so). The last action was cool, but a little bit unclear till the end due to rough camera work. I do like the last keypose where he's throwing the ice spikes, but refine the part before that a bit more. Also the ground and background textures are incredibly rough, compared to the stylized characters. Clean that up
Also I saw the original Pilot, and there were similar issues with the camera freaking out all over the place even though there were solid moments of animation and action. Ensure that the actions have time to be properly seen with visual clarity. Because otherwise it's difficult to keep track of what's even happening, even if there's cool animation.
Edit: Well, I mean if they had issues with my work, I'd be okay with my own audience trying to get me to change any problems. The way I treat my feedback isn't as a demand, but more a heavy handed suggestion. Though in the end of the day, it's up to you if you want to make any changes, I mean I can only point out problems I think you should change.
But regardless, if you're taking my feedback, then I have no complaints. I wish you luck on this, because I like what you're doing. You could make this into something quite epic.