I'm afraid I lack your diligence in getting all the image sizes to match. This was an interesting little diversion as it showed how few striking album covers I have. The heavy metal genre is clearly still way out in front making big, crazy art for their covers, while at least most of what I have are straight band photos or perhaps altered in some somewhat artistic way. I stuck with only albums I had and steered clear of the easier targets (what few 70s mainstays I might have that would put some effort into a cover by default). Nothing much to be done about the small image for Infected other than scanning it myself. The band name makes it somewhat Google-proof and it probably didn't get all that much attention in the first place.
(missing image) Speakerboxxx/The Love Below-OutKast
If you are curious on the heads of the Electric Circus Album Cover, here is a list of the heads from left-right top-bottom order.
Common (in the center), (from top-left to bottom-right) Prince, Leroy Matthais, Simon Johns, Chad Hugo, Larenz Tate, Stic.man, Pharrell, Mattie Turner, Kenyetta Snyder, Big Daddy Kane, Vinia Mojica, Erykah Badu, Rahsaan Abraham, James Poyser, Tim Gane, DJ Dumi, Questlove, Black Thought, Grandma Gipson, Marie Daulne, Richard Pryor, Marlon Everett, Jay Dee (J Dilla), Mary Campbell, Steef Van De Gevel, M-1, Don "Babatunde" Eaton, Tyrone Tribett, Pino Palladino, Abiodun Oyewole, Andrew Dosunmu, Umar Bin Hassan, The Honorable Minister Louis Farrakhan, Joseph Sharrieff, Steve Mandel, Jimi The Cat, Dartanian Donaldson, Mary Hansen, Steve Hess, Morgane Lhote, Kimberly Jones, Aunt Stella, Q-Tip, Marc Baptiste, Grandma Mable Lynn, Derek Dudley, Uncle Charles, Uncle Steve, John Hancock, Bob Power, Koryan Wright, Ashaka Givens, Dwayne Lyle, Eevin Wright, Russ Elevado, Marcus Murray, Barbara Sims, Rachelle, Cee-Lo, Jill Scott, Bayatae Abraham, Charlie Malone, Jeff Lee Johnson, Assata Shakur, Leslie Sims, Angela Murray, Kolleen "Queenie" Wright, Laetitia Sadier, Cousin Bianca, Omoye Lynn, Mary J. Blige, Grandma Elva Brown, Millie Malone, Chris Webber, Bilal, Lonnie "Pops" Lynn, Jimi Hendrix, George Daniels, Fred Hampton Jr., Fred Hampton, Omar, Seven, Karriem Riggins, Ma, Ralph.