2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/95203In this Comment I argue that the method of images used by Huang, Yu, Gu and co-authors [Phys Rev. E, 65, 21401 (2002); Phys Rev. E., 69, 51402 (2004)] to calculate electromagnetic properties of interacting spheres at finite frequencies is inapplicable and does not provide a physically meaningful approximation.4 pages 3 figures. Replaced because Fig.3 did not reproduce nicely in the automatically generated PDF. This version contains no revisions compared to the originally submitted paper. Only some figures were moved aroundOpticstext