 "Metal Storm" called "Endless Forms Most Beautiful" "a sweet album of awesome songs" which "doesn't try to be some over the top attempt to grandly announce a new era for the band" and "a smart move".The online magazine praised Jansen's vocals and how they challenged her voice compared to her previous work with ReVamp; she uses "the soft and sweet side, the lows, the hushed serenade, as well as an even harsher side".Solomon Encina called the album the band's most accomplished effort in Metal Injection, although he found "Élan", "Alpenglow" and "Endless Forms Most Beautiful" repetitive and stale.