Aren't computers are great? Now we can see what we'd look like with massive heads!

Here's Jonny with his Normal head!

(As you can see Jonny's face is marginally too big for its skull, but it does fit. This results in what is medically known as a 'pin-head'. The eyebrows are indeed that bushy, but hey, what are you gonna do? All sorts of goodies can be hidden in brows that thick. Besides, Jonny might be a grandpa one day and what kind of grandpa would have thin eyebrows?)

And here's Jonny with a Big Head!

(Don't get scared, now he has a 'fat-head' which is another well known medical condition. Popular school nicknames for persons with 'fat-heads' are HEED and Bonce and Big'ead)