At first I was worried this was gonna be one of those bullshit animations where the whole point is it looks bad and that's the joke. Thankfully it wasn't.
It's alrighttttt I guess. The sonic model looks creepy enough without going too tryhard and I think on a whole you did good making it creepy as fuck. Just felt like it's too long, could've been summarized a bit with some parts being shortened or have them overlap instead of one drawn out "scene" drag on after the other.