Just a little shameless self promotion here, haha. Last night I finally managed to upload this video tutorial along with all the necessary files to help people easily create renders in zbrush like my little robot buddy here. I promised a long time ago I would do this but better late then never! XD
https://www.artstation.com/marketplace/p/nMrV/zbrush-npr-rendering-tutorial-bpr-filter
Demo video: https://vimeo.com/477881016