MOCA GA. February 25, 2017- April 29, 2017: Mario Petrirena: the distance between. Mario Petrirena works with a variety of mediums ranging from sculpture to installations. Previous themes explored by Petrirena encompass complexities surrounding dual heritage and identity. Mario Petrirena Artist Talk: April 13, 2017 6:30 pm Reception, 7 pm talk. Free for all. February 7- July 29, 2017: Selections from the Permanent Collection. Artist Talk: Apr. 13th, 6:30pm.