only need a face... i may end up using marth's face but idk...
btw, he is over link and has a moveset written...
Looks really neat. I like the futuristic look.
Maybe add an emblem or symbol of some sort on one of his sleeves, or on his chest? It could be subtle- it doesn't have to be a bright blue color.
I'd also consider some sort of notch on the end of the gun, that the gunner would use for aiming purposes.
edit: I noticed your second picture with several more details on the chest; the emblem idea may or may not be necessary in that case.
As for the dagger, I might change the form of it a bit; it looks too similar to the master sword. Maybe make it asymmetrical (or otherwise change the shape of the blade)?
For the face, I suggest a mysterious dude in sunglasses, with dark hair. For a more futuristic look, he could have some advanced visor/eyegear (but I'd still make it completely cover up his eyes).
Consider changing the boots so he doesn't look so much like Marth. Maybe add knee guards that stretch upwards a bit? They'd point out when his knee is bent, which might look cool.
Finally, I should tell you that his waist (I'm assuming from Marth) still looks rather feminine. If you bulk him up with a belt, small backpack/ other item on his back/waist, or just make his waist more masculine in form, then he'd probably look better.