Each week in Curtain Raisers, we invite a local theater artist to attend a show of his or her choosing and discuss the results. On Friday the scenic designer Neil Patel opted to see Amy Herzog's "The Great God Pan," directed by Carolyn Cantor at Playwrights Horizons. A two-time Obie Award winner, Mr. Patel's credits include "Side Man" and "Dinner with Friends." Currently his scenic design can be seen in David Henry Hwang's "Golden Child" and Quiara Alegria Hudes's 2012 Pulitzer Prize winning play "Water by the Spoonful." Next up for Mr. Patel: Lanford Wilson's "The Mound Builders," directed by Jo Bonney, and Craig Lucas's...