There was a lot of different poke-through going on. All 4 tops, the gloves, the tie, at least 2 of the stocking sets... There's also some mesh collision going on with the right-hand/pink-panty where mesh smoothing is pulling the panty out over the hand (this one I ignored, as the pink cloth/skin tones/shadows were close enough for a background character and simply not worth the hassle in post). Some of it might clean up by altering the smoothing numbers, but I've certainly seen it just get worse. But you are right that it is always worth a try as the first fix attempt.
A push modifier would be the next step for a lot of the items if smoothing isn't cleaning it up (although that likely won't play well on the stockings with strappy shoes).