I know I said less colors, but 2 probably isn't enough to convey depth properly. The lines are still pretty jaggy and it's overall pretty flat. Let me show you what I mean. I'll try to whip something up in a second.
Very rough and the colors aren't the greatest, but I wanted to give him an Idea of how you can use hue-shifting in this, while still keeping a dull pallette.
Very rough and the colors aren't the greatest, but I wanted to give him an Idea of how you can use hue-shifting in this, while still keeping a dull pallette.