Sorry LazySam I was just having some fun :smile:
You have some good forms in there, but it's almost obvious you started with an average joe and equipped him in a spacesuit.
Try these things -
Changed the haircut - if he is enlisted, he wouldn't have curly mop top. He would have a buzz cut.
He looks complacent, like he could give a damn what he's doing. Make him scowl or look concerned.
The eyebrows are too thick. Thick or dark eyebrows are a sign of older age.
Another thing that's making him look older are the crows feet from his eyes. These make him look defeated and old, as does the extra lines around his chin.
The jaw structure is good - work with it, lower the lips and make them larger and pout.
Finally, either move the shoulders up or lower the head. The neck is too long. Make him fit with the suit he has.
Keep it up-