Although I got the hand-painted style in substance painter, I still had to deal with how to render non-realistic visuals in maya. So I used aitoon for non-photorealistic rendering. I connected the basecolor map to aitoon’s basecolor, and then connected the base tonemap and specular tonemap to ramp to make light and shade for the model. Since non-photorealistic rendering does not allow for significant 3D vision, I reduced the contrast of light and shade in the model. But the renderings aren’t quite as stunning as I’d hoped, so I’m still exploring how to draw the style in maya.