You look just fine, bud! I see nothing strange about your noggin at all. Heads come in all different shapes and sizes. With so many possible variations, there's no such thing as a "right or "wrong" shaped head.
If anything, the negative types are just jealous of the guts it takes to shave off a head full of hair. The opinions of such superficial people shouldn't matter to you, anyway.
Don't feel bad, my friend. Be proud!