:O!!!!!!!!!!
You actually started working on it already? It looks great so far, love the shoes, but his body is a little big. That may be so it can fit the skeleton, but I suggest making it as small as possible without having to distort the assigned skeleton.
Now, if you are attempting to surpass the official model, this is the one I you are talking about:
But the newer sonic is going to be looking like this:
And as for Super Sonic, you can refer to my avatar. Hopefully you decide to add a Hyper Sonic, just incase this needs to be converted for a 1.3 ssj2 gohan