looks good, but i'd do something like you normally do with your weapons, Every scratch has a story. So formulate mb a story that involves a slight Cut, or a faded small scar, hell mb even a weird mole somewhere.

Fine details really do count and i know ya busy, but these small things go a long long way to making it into a believeable character. From a glance at my face in person you'll notice some very small things that dont stand out yet are noticeable. Such as the mole i have on one side of my face.
my brothers got a small scar above his right eye where he hit a bag hook when he was in year 3.

hell even something as small as a nik from a razor when he was shaving.