Sefton is a full-time artist. He sees himself as a maker who uses paint to create ‘industrial tapa’, which is influenced by the marks and forms of traditional tapa, carving, tattoo, weaving and tivaevae. This reflects his Cook Island heritage and allows him to explore his "Pacificness". Sefton's work is primarily created with solidified paint skins. His time spent working in a paint factory is a key reason for using this unusual material, which he uses to investigate the materiality of paint as an object. Sefton is represented by Scott Lawrie Gallery in Auckland.