Evolutionary Sketches-Sasha

Sasha for a younger demographic has been challenging. I want to imply a strong inner core somewhat concealed by a silver spoon upbringing. 
He will later be rather successful in the military but at 13 I see his as scrawny and less than intimidating. This would, of course, be interesting in a scenario where the characters are a allowed to grow during the series-leading to a sort of ugly duckling transformation.

It should also be noted that the background colors are coming out consistently darker than intended when saved as a jpeg.