Most Helpful Guy
You can't make your chin longer than it is without surgery, it's that simple. I don't think that your face looks out of proportion at all. Besides which, to zoom in on a small area of your body will not give context and hence can't look truly in balance.
Most Helpful Girl
Ok so to be honest with you yes they don't really match the best, but I think it suits your face, if you really are insecure I had a friend who had surgery on her chin to make it longer and it looks fine I liked it better before because it suited her face but if you want to do that go ahead!