According to Wikipedia, "Spock, commonly Mr. Spock, is a fictional character in the Star Trek media franchise. Spock was first portrayed by Leonard Nimoy in the original Star Trek series, and also appears in the animated Star Trek series, a two-part episode of Star Trek: The Next Generation, eight of the Star Trek feature films, and numerous Star Trek novels, comics, and video games
Spock's mixed human-Vulcan heritage serves as an important plot element in many of the character's appearances. Along with Captain James T. Kirk and Dr. Leonard "Bones" McCoy, he is one of the three central characters in the original Star Trek series and its films. "
The design process starts by researching photos and sketching models using plasticine. Then the drawing process becomes a tenacious search for the best depiction for Star Trek´s Mr. Spock.
Detail of vetorial work.