I tried to upload a new picture. It seemed to work, except that the picture didn't upload. My old one is still there. The image I tried to upload was roughly the same thing, just edited for supergrover! It was only around 72kb in size, shouldn't be a problem I would think.

My Bad, read a similar post and cleared my cache. All is right in the world. Except my crappy image edit. I'll re-do it at some point.