I have had a few requests about my process. Here is the starship breakdown. My next one will be a lot more comprehensive and from the beginning.
Once I modeled the ship in SketchUp. I imported the ship into Keyshot.
I played around with a lot of materials to see what I liked, I knew I wanted a darker color so the ship felt malevolent. After some playing around I finally settled on the Fiberglass material. I also added a beer material to some of glassy parts.
For the light beam I used a white emissive material, this created a nice reflections on the Fiberglass material.
This was the end of my KS process. I did a TIFF render and opened the file in Photoshop.
I will let the images do the talking from my PS process.