Born in Tallinn, Estonia, Mirell began her training in Los Angeles, California at the Yuri Grigoriev School of Ballet. She continued her professional training at the Central Pennsylvania Youth Ballet under the direction of Marcia Dale Weary. She has spent summers dancing with Complexions Contemporary Ballet, Boston Ballet, Tulsa Ballet, and the Kirov Academy. Before joining the Eugene Ballet, Mirell performed with the Oklahoma City Ballet. She has also performed with Napoles Ballet dancing featured roles in Luis Napoles' Lecuona and premier of Fausto. This is Mirell's second season with the Eugene Ballet Company.