Guillaume has a broad level of expertise. He graduated at Health and Sport Institute in France. He has a unique approach through his vast experiences and history of learning various martial arts methods. He followed his way all around Asia to deeply explore the path from diverse angles and perspectives. Now Guillaume is based in Bali as an eternal student and teacher. He studies under Tuhon Kit Acenas (Pekiti Tirsia), Guro Fred Evrard (Kali Majapahit), Sifu David Peterson (Ving Tsun WSL).