G&S Painters Guild Highlight Your Mistakes facebook Created with Sketch. Reddit Created with Sketch. Linkedin Created with Sketch. Email Created with Sketch. Pocket Created with Sketch. Flipboard Created with Sketch. Master painter Cullen Knappen joins Will Friedle to learn about different palette techniques used to master detail painting. 07.03.2019 facebook Created with Sketch. Reddit Created with Sketch. Linkedin Created with Sketch. Email Created with Sketch. Pocket Created with Sketch. Flipboard Created with Sketch.