PERSONAL SERVICE means work rendered by individuals which requires use of creative or artistic skills, such as but not limited to graphic artists, sculptors, musicians, photographers, and writers, or which requires use of highly technical or unique individual skills or talents, such as but not limited to paramedicals, therapists, handwriting analysts, foreign representatives, and expert witnesses for adjudications or other court proceedings. A "foreign representative" shall mean a person in a foreign country whose education and experience qualify such person to represent the state in such foreign country.