"Moon Pix" has been called Cat Power's "magnum opus" and "a true masterpiece of emotional shading and compositional clarity." Critics cited it as evidence of Marshall's maturation as a songwriter, with Heather Phares of "AllMusic" writing that ""Moon Pix" continues Chan Marshall's transformation from an indie rock Cassandra into a reflective, accomplished singer/songwriter." Rob Sheffield of "Rolling Stone" called it "even stronger" than her previous album, "What Would the Community Think" (1996), and wrote that "it still holds up as one of the Nineties great singer/songwriter triumphs."