Three Birthday Portraits featuring Abnormal Expressions

My cute J is seven.  I was looking at his body all stretched out on the floor several days ago and my mind's eye flashed back to his first birthday when he was a compact little tornado full of giggles and growls.  He had a mouthful of dinosaur teeth and he grinned a lot.  

He still has his dimples when I catch him in a spontaneous smile, but I'm wondering, is Seven when they just can't pull off a normal expression in photos?  I didn't even have him take school photos this year because he was so stressed about smiling right.  And when we practiced he really couldn't smile normally!   Here are a few of his faces.

Portrait 1:  Mid-bite.  We kicked things off with apple pie for breakfast--I'm fairly certain that all of his other breakfast requests were equally unhealthy, so we went with it. He is so full of great ideas and requests.

Portrait 2:  Success.  His birthday wish may or may not have been that someday he'll get into BYU.  I wouldn't want to risk the chance of it not coming true.  He's a future Cougar at heart, and he naturally aspires to lofty goals.

Portrait 3: So smug.  Here he is with the fruits of his Lego Day labor.  He spent nearly thirteen hours on Saturday and Sunday creating Lego vehicles.  He is an Lego engineer extraordinaire, a tinkerer in every way.