According to the booklet that is included with the album, its cover originates from an antique Dutch cookbook titled "Calvé-Delft's Winterboekje", which was printed around 1940.[not in citation given]
Contemporary reviews of The Glow Pt. 2 upon release were generally positive. Pitchfork called the album an "alive" and "sprawling, swirling composition", while stating that "parts of The Glow Pt. 2 are absolutely breathtaking" due to its stereoscopic enhancements. They claimed that the album "exceeds even its predecessor [It Was Hot, We Stayed in the Water] in capturing the simultaneous wrath and fragility of nature", and praised the title track as being "the single most breathtaking song on the album". In their 2001 review of the album, PopMatters stated that The Microphones' approach to music is "free and idiosyncratic" and "constrained by few boundaries, a fact that allows them to travel through various unique musical lands".Under the Radar wrote that The Glow Pt. 2 "encapsulates chaos with sparatic [sic] changes and bullets of sound" and labelled The Microphones as "one of the most original, interesting bands to come out in the last 3 years". Similarly, in 2003 Stylus Magazine asserted that The Microphones "spew innovation every second of this disc" and that the album "promises something you have never heard before and delivers it, perhaps more than you’d expect".
The Glow Pt. 2 received general critical acclaim upon reissues. In 2008, Exclaim! wrote that the album is "a brave new world where solar noise bursts over sprawling epics of the most intimate nature" and "it's clear age hasn’t tainted the kaleidoscopic Glow Pt. 2 in the least". They also called the Other Songs & Destroyed Versions disc "essential bonus material that only enhances the original experience". Upon the album's reissue, Pitchfork stated that the album "remains [Elvrum's] crowning achievement" and that "seven years of imitation have done nothing to dull its impact-- it sounds as unaccountably grand now as it did in 2001". Like Exclaim!, they commended the bonus disc as containing "essential sketches of new material[...] which expand the album's already-deep relationship to nature". Although they stated "none of the new lyrics clarify the overarching story", Pitchfork affirmed that the new tracks "reveal a few more glimpses of a distant, haunting world that's all the more alluring for its incompleteness".AllMusic awarded the album their "Album Pick" designation and described it as "epic", "dense with musical quick-changes, production tricks, and evocative imagery". They averred that "it's The Glow, Pt. 2's deep, nearly spiritual yearning that makes it the Microphones' most compelling album to date". In their 2008 review of the reissue of The Glow Pt. 2, PopMatters stated that "Microphones fans will find Other Songs & Destroyed Versions more than worth the investment".
After a second reissue of The Glow Pt. 2 in 2013, Consequence of Sound hailed the record as "a masterwork of sequencing as it bleeds and blends from track to track". In its "Hidden treasures" column, The Guardian described the album as "a masterstroke" and "a millennial Daydream Nation". The Line of Best Fit's 2013 review of several reissues of The Microphones' albums lauded The Glow Pt. 2 as an "essential work of modern indie". Stereogum's retrospective feature on the album deemed that the album's "bond with listeners, as individuals, surpasses" its "critical success". In 2013 PopMatters gave The Glow Pt. 2 a mixed review and stated that they'll "continue to appreciate Elverum’s work from afar—admiring it, yes, but not really loving it", despite previously giving the album two highly positive reviews.