Hi, here is some hard-surfacing with lots of sub-surfacing (but a little short of patience with the topology).
These tools are pretty cool. Cycles as usual and some heavy GIMPing.
As for the subject, these things are deadly on the looks as well as the job.
I hope one day, we have these only as museum and things or art.
Rest…enjoy and comments !!
Updates…on the shiny metal…
Looks like good modeling. The texture is very good in my opinion. Try a regular glossy metal material with a grunge map and a normal map. Also try working on your lighting. Perhaps an HDRI image? Try using DOF and getting some blur on the background.
These links may or may not help you.