Portrait of omai, a south sea islander who travelled to england with the second expedition of captain cook. Object Type: painting. Genre: portrait. Date: 1776. Dimensions: height: 236 cm (92.9 in) ; width: 145.5 cm (57.2 in). Medium: oil on canvas. Depicted People: Omai. Collection: Collection of John Magnier. Joshua Reynolds - Portrait of Omai