I want to undo an accidental upload on a texture. I had a head design on it then changed it. I also want to know if there is a possible way to recover the full size flat image of the head from the head item. As long as you're the owner it should be possible right? I can only get the image back at a little size. It's suppose to be 512.

Check your custom folders, it could be in there still if you haven't opened toribash yet.