I know this doesn't look TOO different but this is actually Evan (myself) grown up, about mid 80's and I'm sure you're wondering 'his mid 80's?! but he still looks young!' well reason for that is with him being a demi he is immortal, yes, but still there are more than one classes of immortality.

1st class: A god, no death date and nothing can kill you, you're infinite
2nd class: No death date but can be killed by something or someone.
3rd class: Lifeline is extraordinarily long or just long enough to surpass the average mortality age of 85, but will eventually kick the bucket.

With that being my point of view on life spans, Evan's would be of the 3rd class but his death is played out differnetly, he's still alive, but sealed away until someone awakens him, like a tomb with cartouchies that if read aloud, strange things are believed to happen. Other than that, Evan stays dormant for as long as time continues.

Anyway, about the pic, in this, Evan's in his mid 80's and managed to become ruler of a small village he started with the help of a few friends. Though with his friends being mortal, they eventually claimed mortality thus the villagers had no one else but to look up to Evan to protect them as he and his friends promised to do. But with his friends, who were actually Evan's teachers, no gone, it was up to him to keep their word and put his power to good use.