You know those cherub figurines? The chubby cheeks and perfectly tousled hair, chins resting thoughtfully in palms, newly sprouted wings, angelic eyes aglow? Harmless, right? But what if I told you there was a sinister heresy behind those winsome smiles, a dark theology imbedded in the lure of baby fat? "Two Cherubs" by Raffaello Sanzio…