I continued to add highlights and shadows to the figure until he felt solid. Next, I needed to tackle the floor beneath him, which was challenging since it was just a flat color.
In a match though, there would likely be multiple light sources on him, which would cast crazy shadows in all directions. I had to simplify and approximate what this would look like in pixels. I cheated a little and used some soft brush gradients, but I added some pixelated shadows immediately beneath his feet to ground him in the scene.