Color Palette - Process (Patreon)

This is how I currently arrange Gretta's palette. This art style has a 3  step ramp for most materials, with white specular highlights or 30% white on duller materials. 

I took me a bit to of time to find the right values/contrast, as there are many ways to go about it. I referenced some older Japanese game CG (such as the Viper stuff) and cross referenced many other artists who use cel shading as their predominant form of coloring their work. I found that ramp values of about 20% apart work well for my tastes. After everything is rendered, there are some softer light fx and blooms on shiny things like metal.