i have seen my fair share of animations, both on newgrounds and other places, to know what makes a good video. this one video blends the concept of 0 from math and the human taboo in FMA very well. the design you took is remarkably similar to what they used in the actual show and for something not made by them, this is very good. off of that, a little bit less of the FMA design and a little bit more of the regular flash design would of been a great fitting, and gotten a few more likes, for this. overall this is a superb flash that you made and you have a lot of potential for making others if you took the time to make some more.