as i want to show visualise that  Tony's family were gone but he was left, my idea is to illustrate him as a 15 year old boy (the age he was when they died) within the family silhouette, however i will add the detail to his body and face unlike the rest of the family, to symbolise that he is still alive.
above i have collected images of teenage boys for as reference material for me to use to draw from. 

i will also take inspiration from this image when drawing my illustration as i won't to connote and emphasise the fact that tony was a school child when the tragedy happened. 

i have drawn the boy with pencil to keep with the design style of the main portrait illustration and the rest of the drawings i am adding inside the t-shirt.