William Dunlap, Rebecca Thompson, Pinkney Herbert, John Harlan Norris, Glennray Tutor, Sheila Cotton … if you like the work by these artists, you’ll want to stop by Greg Thompson Fine Art for the gallery’s 20th anniversary show. The John Alexander at the foot of the stairs is easily missed; don’t. Tutor’s photorealism is almost unbelievable. Thompson’s painting of a stonemason at rest is an excellent example of her best deft strokes and palette. Herbert’s abstraction is fresh, non-derivative stuff. The exhibition runs through March 21 at the gallery, 429 Main St., North Little Rock.