Cutlines and details
I now have a good base on which I can start adding details. This is the step where I can work on the scale of the vehicle. Right now it could be of any size: from a small airplane to a big cruiser. Adding details such as antennas, cutlines, a cockpit/command windows area, decals or any detail that has a size element to it will give the viewer a sense of the ship’s scale.
Extra touches and cleaning up
I erase leftover pixels around the edges, refine the smaller forms, add colour accents such as decals painted on the hull, emergency exits, launch pods, a hangar door, tubes and tanks sticking out of the main hull. All these details reinforce the scale impression and make the design more complete and functional. I always research ideas for these elements from real-life vehicles.