Like the idea, but that's not what the shuttle looks like on launch... It takes the main engines plus the two boosters to get to orbit. I understand that it's a stylized drawing, but it doesn't look right. Otherwise a good design; i like it.
I think if you remove the boy (is it a girl?) then the whole point is lost. Maybe have a really little silhouette of a boy looking up. That way you have conveyed the message subtly and the shirt will look cool. 5$
I think a full head to toe silhouette of a boy or girl facing the ship, maybe standing on the grass, and an older moon landing era rocket would be better and simplify the illustration. When I see the shuttle launch nowadays I mostly am thinking that it might explode at any time.
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