Is it bad that I don't think the combo on the left is horrible? Although I would tuck in the shirt.
Pink and red is atrocious though.
Actually, red with magenta is one of my favorite color combinations, even if it's not something I'd personally wear. That guy's v-neck is slightly too purplish for that, though.
It's usually not difficult to throw greens and green-blues together and get them to work, but the color combination on the guy on the left just looks chintzy for some reason.
Of course, I'm not even going to touch on the fact the GQ is suggesting we wear sweaters over polos.