[4] Describing the event, Hayes wrote: The light grew by degrees more and more intense, and from irregular bursts it settled into an almost steady sheet of brightness...

Again this green overrides the red; blue and orange clasp each other in their rapid flight; violet darts tear through a broad flush of yellow, and countless tongues of white flame, formed of these uniting streams, rush aloft and lick the skies.

[6] Charles Millard describes Church's paintings as "large in scale and size, sharply horizontal in format" and "dramatic in subject, but yielding in execution, and tend[ing] to exploit both value contrast and continuous tonal transition."

Church's works, including Aurora Borealis, were completed using small touches of pigment built together through thin applications, leaving the viewer unaware of fracture between strokes.

The second association between Aurora Borealis and Rainy Season in the Tropics was established through their compositions and "in their luminosity", where each suggested a "renewed optimism in natural and historic events".