From the judges’ reasonings:

Dr. Arnon Palty’s writing excels in vision and  originality of the highest skill.
His mastery of the art of orchestration and arranging is astonishing. There is a great deal of freshness, imagination and harmonious innovation in his work, which draws its content from the traditional world of jazz, but opens up to completely new worlds of content, creating a new, intriguing and surprising connection in the field of jazz.
The musicians who perform his works are some of the best in the world, which undoubtedly adds to the quality of the performance.