A little experience I did with a drawing I did at work with a ballpoint pen & Photoshop. (Yes, again an alien ! I think I'm obsessed again ! DX)
I wanted to give him a metallic look, but from copper and not iron this time, not like most of classical Giger's dark creatures.
Of course, the teeth look weird, but that's my silly version of it. YES, my battle droids have a mouth but my alien has no jaw and no tongue... poor thing ! XD
Alien---->Fox or Giger...