http://3d.cgmasteracademy.com/interviews/interview-with-the-masters-with-frank-tzeng.html
Site featured in the interview: https://www.artstation.com/artist/frank_tzeng
Also, U4's Shading Artist: https://www.artstation.com/artist/yibingjiang
Frank has been a Lead Character Artist for almost a year at Naughty Dog. His work includes Uncharted 4, Killzone: Shadow Fall, Puppeteers and an upcoming unannounced AAA game title. His work has been featured on Kotaku, Pixologic and has been a CGHub Editor's pick and Gold award winner. He is a part of CGMA's Advisory Board.
Site featured in the interview: https://www.artstation.com/artist/frank_tzeng
Also, U4's Shading Artist: https://www.artstation.com/artist/yibingjiang