I really like the artwork! You're right. I think a proper flight suit and maybe some goggles or some kind of visor would be more appropriate for wearing while piloting a starship. The armor does look legendary.
Maybe you can finalize what you want to see on the cover of Book 2 by the time that comes out anyways because they develop physically through the story too. That's probably when I'll see those facial cybertics I'm imagining.