As clockwork as owing taxes is the Oklahoma Pastel Society’s annual Small Works show — always a big deal! With pretty li’l pieces from 20 members, this year’s exhibition begins with a 6-10 p.m. Friday reception at Adelante! Gallery, 3003 Paseo, and is viewable thereafter Thursdays through Saturdays until Sept. 1. Admission is free. Call 214-587-7686 or visit adelantegallery.com.