Huh.
Well, that was, different. I feel like there wasn't a lot of thought put into it, but I believe you said it was a test, so I guess not a lot was needed.
I feel like a lot of animators are striving for a "Disgusting and Revolting" kind of drawing style. Like the wound, or Sonic at the end.
The voice acting was pretty good.
And it may just be me, but it looked like most of Sonics poses at the end were just his other poses from games, and shows just re-drawn... With a spike through him.