Alright ya'll got jokes.... but wait!
As ya'll know, I too am bald and I know what's going on here.
His head only looks like that because he's flexing his jaw in order to make it more square for the picture.
Ya'll think I'm lying to try to help a fellow bald breh out, but try this... put your fingertips on your temples, and then grind your teeth to flex your jaw. You will feel the muscles in your jaw go all the way up to the sides of your head, which is just more pronounced in bald men because we don't have any hair to hide the sides of our head flexing.
Basically, the muscles in his head are flexed because his jaw is flexed.
Most bald brehs know about this and make the necessary adjustments for pictures.