The gathering place in many small towns in America is the local bar. This painting is of one of them in southern Indiana.
The two main things in this picture are the bar and the large mirror. The items closest to us on the bar are painted larger than the persons further back. This gives the illusion of depth. They are almost silhouetted, so no detail is needed. Your mind puts the features in.
The top-right hand portion of the painting is of the mirror. You see reflected in it the front window and entrance to the establishment, as well as the reflections of the bottles that are on the counter. Again, the bottles are painted simply with quick strokes of color. Your mind sees what is there.