Service droid concept art.
Final painting with added sci-fi decals purchased from artstation for added bling
I used the silhouette method to work out the shape of my robot
Turned my silhouette into line art and filled in the contents of my robot
Filled in all the panels i wanted to be armour
Used colour dodge to bring out a metal shine
Rendering the underneath panel areas with wires and screw/more intricate detail for image balance