Acceptable, but a few things need fixing
I've looked at some of the reviews, and some are complaining about your art style, how the lines look like they're unfinished, and you counter by saying it's just your art style. However, in the author's comments you say that there were problems keeping it under the 10mbs limit. If you were to clean up your lines a bit, it would help with the size problem. I'm not saying make completely clean lines all the time, but extra, unnecessary curves and lines just devour resources. There's a function in flash where it decreases curves, I think it's called simplify shape or something like that. You don't need to sacrifice style for functionality, but since it was so graphically intense, I had to watch it on low quality, making the lines a tad unbearable.
The story seemed a bit formulaic as well. Unless you can redo the dude-with-amnesia-plot so that it isn't like all the other dude-with-amnesia-plots out there, there's danger of the following animations to be rather cliched. Also, the 'gah you destroyed my village' part at the beginning absolutely reeked of cheese and melodrama. I don't know how difficult this would be to fix, as everyone has a different writing style, but I have faith. I remember you responding to another review stating this, saying that you feel that it would appeal to a larger audience if it was cheesy. Please, don't go about thinking like this. You'd be losing quite a number of intelligent people who are looking for something that would make their life/day/that moment a bit richer than it had been before. Also, it's my personal opinion that the author should create for themselves, not for the masses.
The script reminded me of Dragon Ball Z, with the obvious inner monologues and the expository nature of the phrases. It was like you were trying to get as much information out as possible. This is understandable, as this is the first installment, but it's better to show instead of tell, or maybe to hint and leave cliffhangers. For example, the part where amnesia dude (I can't remember anyone's name, forgive me) started flickering in and out of existence. His companion said something along the lines of "I don't care if you don't know who you are. Ever since you rescued me... ... ..." Do we REALLY need to know that he rescued her at that VERY moment in time? Right there you're telling us that a) he doesn't know who he is, b) only remembers that one village, c) flickers randomly in and out of existence, d) rescued his companion, e) that she feels the need to pay him back and f) gives possible leeway into a romantic interest subplot. That's a lot in just a few lines, and feels a bit forced.
Now on to audio. The music was pretty decent. There were some parts where it was a bit unneeded or excessive (like the amnesia dude scene), but other parts where the music fit perfectly, like the scene after that. It also looks like you wrote all the music yourself, and I respect that. Good job.
The voice actors however... they're a different story. It seems to me that the people who are raving about the superior quality of the voices are confusing it with the quantity of different characters, and the fact that there were three people doing them instead of just one or two. Quite often they were excessively melodramatic, which just accentuated the melodrama in the script. Try toning it down a notch or five. It will be better because of it. I'm NOT saying that you have to replace them with Tomamoto or Egoraptor, but maybe a few more tries going for that perfect, natural sounding tone. Think to yourself: would these words actually be said like this?
Last point: the subtitles. I can appreciate subtitles. They help to make it so that people can understand what your people are saying. But they are no help when they are distracting. And when there are blatant errors in the text, it pulls the viewer away and diminishes the immersive quality of the work. The blatant spelling mistakes qualify, same with those instances when the words didn't line up with the audio.
Overall, it was decent. Not groundbreaking, but I'll keep watching.