I've thought about this before saying it, because I truly do not mean it as an insult to you....But, you don't have the aptitude to appreciate what they did.

Those vids are short because it's hard as hell to do all the stuff that they did. From editing the arenas and sprites, to the sound manipulation, and the life bars. Special moves, and their effects AND animations....ect ect ect

They did an excellent job by any expectation with those animations. Especially considering that those are pure fan made.