Eventually, Shi Kai Wang was hired for conceptual art. One of Wang’s sketches was accepted and became the basis for the Master Chief however, after Wang’s version was converted to a 3-D model, it was decided the character looked too slender, “almost effeminate”. The Master Chief was subsequently bulked up to the version currently found in the games. Similarly, the Chief’s armor went through various changes, such as the addition of an antenna, which was removed later in development, and a green tint. The task of developing Master Chief for the character’s first appearance in Halo: Combat Evolved fell on Rob McLees and the project’s art director, Marcus Lehto.