I thought it was great for second submission
There are somethings that you could have touched up on in the artwork (like an awkward line here and there) and some of the positions could have been fixed, the effects were great, I really think if you put more effort in to the storyline and had a longer animation it would be on the best of all time list. The fighting scene was probably one of the best I've seen on newgrounds (mostly because of your effort in to effects). I agree with other reviews that it was kinda cheesy, oh and one example of touch up would be the consecutive line shadings on his face, if you're going for a "manga/anime" feel in shading like that, it's normally thinner and closer to each other while also following a pattern scheme, sometimes they put in the pattern scheme even if the shading covers a 3 dimensional drawing. I really thought this was great if this was to test your animation skill, keep up the good work =D