Joy Brown is a presence that looms large on Broadway these days. No, she is not in an SRO play. Rather, nine of the sculptor’s larger-than-life bronze figures, all exuding a Buddha-like serenity, are installed along the thoroughfare.

The exhibition, which has been extended through mid-February, is presented by Morrison Galleries of Kent and the Broadway Mall Association in cooperation with the New York City Department of Parks and Recreation.

The rotund figures are installed from 72nd to 168th Street, greeting pedestrians crossing the street and subway riders emerging from below ground. “It...